When Using the Basal Body Temperature Method of Family Planning

When using the basal body temperature method of family planning, the woman should understand that

A) she will remain fertile for 5 days after ovulation.
B) she should take her temperature each night before going to bed.
C) her temperature will increase about 0.2 to 0.4°C (0.4 to 0.8°F) after ovulation.
D) her temperature is normally lower during the second half of her cycle.