Consider the statements given below regarding contraception and answer as directed thereafter:
A. Medical termination of pregnancy (MTP) during the first trimester is generally safe.
B. Generally, chances of conception are nil until the mother breast-feeds the infant for up to two years.
C. Intrauterine devices like copper-T are effective contraceptives.
D. Contraception pills may be taken up to one week after coitus to prevent conception.