Read the paragraph that is shown. From the choices listed, select the implied main idea of the paragraph.
An improvement in one's income or standard of living does not always mean increased happiness. Over the generations, the general standard of living in the
United States has risen. Middle-class Americans today have more than upper-class Americans had one hundred years ago, but people are not any happier as a
result. Research actually suggests that people are less happy than their grandparents were, despite an increase in wealth across the board.
O Happiness does not necessarily increase as a result of material wealth.
O Americans today are not as concerned with the pursuit of happiness as they were in the past.
Happiness has increased throughout the United States over time.
O Standards of living have increased throughout the United States over time.