The ________ refers to a sex imbalance in the ratio of available unmarried women and men.
A) marriage opportunity index
B) marriage squeeze
C) sex ratio
D) selection disposition
Question 2
Masturbation ________.
A) endsduring adolescence
B) is the most common of all sex acts
C) hinders the development of social relationships
D)refers to the use of external stimulus to arouse sexual feelings