The rhythm method of birth control
a. relies on timing intercourse to coincide with ovulation.
b. depends on the ability to reliably predict the time of ovulation, every month for the entire duration of time during which a woman does not wish to become pregnant.
c. is more effective than the pill in preventing pregnancy.
d. involves examining changes in cervical mucus composition following ovulation
e. is based on cyclic sperm production in the male.

B. depends on the ability to reliably predict the time of ovulation, every month for the entire duration of time during which a woman does not wish to become pregnant.

Explanation:

The rhythm method of birth control -

It is one of the birth control method , with an average of 80 and 87 percent effective for the prevention of the chances of pregnancy .

Since , not every day of the month is equally fertile to get pregnant .

Hence ,

This method , depends on the ovulation period of the women , as during the ovulation period , the women is more expected to get pregnant , if the egg get fertilized .

Therefore , the women can get pregnant with the egg is fertilized during the ovulation period , but the chances of pregnancy apart from the ovulation period is very low.

answer:

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explanation: