Recall Application 6, "Culture, Evolution, and Economic Growth," to Answer

Recall Application 6, "Culture, Evolution, and Economic Growth," to answer the following questions:
-According to the application, the research of Galor and Moav concluded that the sources of evolution was genetic because:

A) they found that richer families had a longer life expectancy.
B) they found that families with fewer children invested more in their human capital.
C) the family tree of most successful individuals in England could be traced back to the royal family.
D) poorer families were more determined to succeed than those in richer families.