Consider the statements given below regarding contraception and answer as directed thereafter:
(a) Medical Termination of Pregnacy (MTP) during first trimester is generally safe.
(b) Generally chances of conception are nil until mother breast-feeds the infant upto two years.
(c) Intrauterine devices like copper T are effective contraceptives.
(d) Contraception pills may be taken upto one week after coitus to prevent conception.
Which two of the above statements are correct ?