When using quotes in an essay (which teachers often look for) make sure that the quote addresses the prompt. Also, make sure to use quotation marks and cite where the quote came from by using the authors surname and page number.
For example "The Dursley's of number four Privet Drive were proud to say they were perfectly normal, thank you very much." (Rowling 1).
I think a. use of verb tenses
"think"
It means to persuade mostly, so your answer is D.
Make corrections in punctuation and capitalization in the sentences below.

(1) Look at your fingerprints and you will see small ridges in the skin. The pattern of those ridges is different from anyone else’s fingerprints. Fingerprints never change. If the skin were burned off your fingertips time and time again, your fingerprints would be the same as they were once the skin heals.
(2) There are many different characteristics on each fingertip. Each finger has about 100 different marks. No two fingers on the same hand are alike. No two fingerprints have yet been found to be exactly alike.
(3) Everything that is touched by a person carries his fingerprints. Criminals are captured by the police because their fingerprints are found on objects associated with the crime.
(4) The Chinese were the first people to use fingerprinting thousands of years ago. Today, all countries use fingerprints to identify people. The FBI in Washington has a collection of almost 160 million fingerprints.

Latin America, like much of the developing world, will have to face serious challenges in the current century. Environmental changes, persistent inequality, and increasing violence force millions of people throughout the region to live in a constant state of uncertainty. Hispanics are split on whether they think of themselves as a “typical American” or “very different from a typical American.” According to the survey, 49% of Hispanics say the former, while 44% say the latter. Latinos in the U.S. describe their identity in many ways, reflecting the diversity of origins in the Latino community, the immigrant experience and geography. Broadly, some Latinos use pan-ethnic terms such as “Hispanic” or “Latino” to describe their identity; some prefer their family’s Hispanic origin group; others use “American”. For Puerto Ricans, among those born on the island (or in another country outside the U.S.), 74% most often use the term “Puerto Rican” to describe themselves. Among Puerto Ricans born in the 50 states or D.C., just 42% do the same. Half (48%) of second-generation Hispanics most often describe themselves by their family’s Hispanic origin name. We can divide the environmental challenges into those that are already apparent and those that will become more so through the 21st C. (World Bank, 2016) Among the former, the most obvious one is the pollution that mars many cities in Latin America. In many cases, this results not so much from industry as from the massive concentration in 1-2 urban areas in each country. This pollution can be both airborne, and arguably more important, also originates in the underdevelopment of sanitation infrastructure. Half (48%) of Mexicans say they think of themselves as a typical American, while 46% say they think of themselves as very different from a typical American. Among South Americans in the U.S., those shares are 46% and 48%, respectively.