Is the stimulation of one's own genitals for sexual pleasure a. mutual masturbation b. masturbation c. coitus d. fellatio e. cunnilingis

B. Masturbation.

Explanation:

Mutual masturbation occurs when two people masturbate together with consent.

Coitus is sexual intercourse, so two people are needed and doesn't count as masturbation per se.

Fellatio is oral stimulation of one's penis.

Cunnilingis is oral stimulation of a female's vagina.

Hope this helps :)

coconut why: has water in it : )

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.