Answer:
(1) An author doing research for a book asked thousands of Americans what made them happy.
Explanation:
It's tempting to say that the main idea is the conclusion of the paragraph, which is stated in sentence (5). However, the main focus of the paragraph is more on the research on what makes American happy, which is detailed by the responses of the research subjects, as well as the conclusion of the research study. If (5) was the main focus, there would be more details about why most of the things that make you happy are simple and free or inexpensive or what the general research about this topic has been, instead of just one study in particular.
Explanation:
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<u>Answer</u>:
The sentence that would improve this conclusion is - Organizing safety classes for drivers and cyclists will ensure that everyone knows the rules. The right option is <u>Option B.</u>
<u>Explanation</u>:
While analysing the conclusion of this excerpt, this option seems to be the best. In the end of the passage it is said that sharing the road can be tricky, but there are things that can be done. One option is given which is the organisation of safety classes for drivers and cyclists. If any country or town, opts for this then there would be less chaos on roads and seeing others people following the rules and regulations will bring about road safety and ensure the safety of drivers and cyclists.
