The answer is letter A. The California Alian Land Law of 1913 prohibits foreigners from owning lands, stocks and other properties. They were also not allowed to lease them for more than three years of tenure. Many Chinese, Indian, Japanese and Korean immigrant farmers were deeply affected of this law. This law was implemented to stop foreigners from immigrating, specially Japanese immigrants and to create an inhospitable climate with the other immigrants in California. Around this time, there was an on going Anti-Asian prejudice going on causing the implementation of this law.
The correct answer is the 14th Amendment.
It states that "All persons born or naturalized in the United States and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws."
Specifically, your referenced quote is known as the "Equal Protection Clause"
One of the main things that brought an increase in income and growth in the GNP for the United States during the twenties was "stock market speculation," since during this time--known as the "roaring 20s"--there was a great deal of stock market investment, which (temporarily) spurred growth.
The quite is most likely from The Florida Constitution