Final answer:
Cervical barrier methods do not affect hormone levels or inhibit ovulation.
Step-by-step explanation:
The FALSE statement regarding cervical barrier methods is A. They affect hormone levels and inhibit ovulation. Cervical barrier methods, such as cervical caps and diaphragms, do not affect hormone levels or ovulation. They work by creating a physical barrier to prevent sperm from entering the cervix. Other statements mentioned in options B, C, and D are true. The use of cervical barriers can increase the risk of toxic shock syndrome and urinary tract infections, they can be inserted prior to sexual activity, increasing spontaneity, and they may require the use of spermicide to increase effectiveness.
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