Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

$(1)$ Medical termination of pregency $(MTP)$ during first trimester is generally safe

$(2)$ Generally chances of conception are nil until mother breast-feeds the infant upto two years

$(3)$ Intrauterine devices like copper$-T$ are effective contraceptives

$(4)$ Contraception pills may be taken upto one week after coitus to prevent conception Which two of the above statements are correct?