Cu ions released from copper-releasing Intra Uterine Devices (IUDs) –

The permissible use of the technique aminocentesis is for

In vitro fertilization is a technique that involves transfer of which one of the following into the fallopian tube?

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