Select the correct statement from the following.

Test tube baby programme involves in vitro fertilisation followed by the transfer of the zygote/embryo into the fallopian tube/uterus.MTPs are considered relatively safe during the first trimester. ZIFT involves the transfer of zygote or early embryo (upto 8 blastomeres) into the fallopian tube. Embryos with more than eight blastomeres are introduced into the uterus. GIFT involves  in vivo fertilisation.