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3 Explanation: 3. The basal body temperature method is used to detect ovulation by an increase in the basal temperature during the menstrual cycle. It requires that the woman take her temperature every morning upon awakening (before any activity) and record the findings on a temperature graph, and is based on the fact that the temperature almost always rises and remains elevated after ovulation because of the production of progesterone, a thermogenic (heat-producing) hormone.
Explanation: