A person whose immune system is damaged by physical and psychological factors is more likely to develop

Suppose you observe two children, sitting together and occasionally looking at each other, but not really interacting. Each is playing with her own toy. If these children are typical for their age, about how old are they?

a. one girl is probably 2 and the other much older, perhaps age 6 b. both girls are probably about 2 years old c. both girls are probably about 4 years old d. both girls are probably about 7 years old

Which of the following statements regarding sexual orientation is true?

a. Gay men are more likely to be bisexual than lesbians. b. Lesbians make up a larger proportion of the population than do gay men. c. Gay men and lesbians are bisexual to a certain degree. d. Many more people engage in homosexual behavior than are considered homosexual.