The term "successful aging" is used to signify extensive social interaction and activity

Older children tend to choose friends who are of the same sex, race, and economic background as themselves

Indicate whether this statement is true or false.

The average woman has ____% more fat and ____% less muscle than the average man

a. 50; 25 b. 20; 10 c. 70; 40 d. 80; 10