Which one of the following is true about Basal body temperature?
1. Biphasic pattern
2. Increase in the level of progesterone and norepinephrine
3. Temperature falls by 0.5˚C after ovulation
4. It can predict ovulation precisely
Select the correct answer using the code given below:
(a) 1 and 3
(b) 1 and 2
(c) 1 and 4
(d) 2 and 3
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ANS- (b) 1 and 2