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3.Reproductive Health
medium
$A$ : Maximum chances of failure in Rhythm method of contraception.
$R$ : Very few women have absolutely regular cycles.
A
Assertion and Reason both are correct and also correct explanation.
B
Assertion and Reason both are correct but not explanation of assertion.
C
Assertion is correct, but Reason is incorrect.
D
Both Assertion and Reason are incorrect.
Solution
Rhythm method has failure rate of $20-30\;\%$
Standard 12
Biology
