86. What is this passage mainly about?

1. The weighing of health benefits of birth control.
2. The marketing of contraceptive methods.
3. The non-contraceptive benefits of contraception.
4. Abundant options of birth control today.

87. Reasons for contraception failures include ____.

1. absence of placebos in women
2. inconsistent use of birth control pills
3. controlled periods in mothers-to-be
4. reduced risks of cancer

88. The newest IUDs have not been widely applied because ____.

1. they have next to perfect efficacy rate
2. they lack insurance support
3. they are not as good as birth control pills
4. more doctors need to be trained in inserting them

89. The claimed "noncontraceptive benefits of contraception" may indicate ____.

1. reducing the risk of cancer
2. improving the health of mothers-to-be
3. enhancing complexion
4. all the above

90. According to some claims in the passage, using contraception ____.

1. may promote women's health before pregnancy
2. may encourage better compliance among women
3. could be a technological issue for doctors
4. is concerned with family planning policies

(Reference keys.)