Multiple Choice
Life expectancy:
A) represents how long a person can expect to live, on average, and can be calculated at any age
B) is always calculated at birth
C) was only about 60 for males and 58 for females in 1900
D) has made substantial gains of at least 20 years in all parts of the world over the past century
E) is now about 79 years for males and 84 years for females in the U.S.
Correct Answer:

Verified
Correct Answer:
Verified
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