Zygote or embryos upto 8 blastomeres can be transferred into the fall…

The correct answer is Option (1) → Zygote intra fallopian transfer (ZIFT)

In IVF (test tube baby), the ovum and sperms are joined in the laboratory. The resulting zygote or early embryo is then put back into the woman. Where it goes depends on its stage: early embryos go into the fallopian tube, later ones into the uterus.

Option (1) Zygote intra fallopian transfer (ZIFT) — Correct. A zygote or embryo of up to 8 blastomeres is placed in the fallopian tube.

Option (2) Gamete intra fallopian transfer (GIFT) — Incorrect. In GIFT an ovum (a gamete), not a zygote, is transferred into the fallopian tube of a woman who cannot produce one.

Option (3) Intra cytoplasmic sperm injection (ICSI) — Incorrect. In ICSI a sperm is injected directly into the ovum in the laboratory to form an embryo.

Option (4) Intra-uterine insemination (IUI) — Incorrect. In IUI semen from the husband or a donor is placed in the uterus; no zygote is transferred.

NCERT Extract:
Infertility – “… In vitro fertilisation (IVF–fertilisation outside the body in almost similar conditions as that in the body) followed by embryo transfer (ET) is one of such methods. In this method, popularly known as test tube baby programme, ova from the wife/donor (female) and sperms from the husband/donor (male) are collected and are induced to form zygote under simulated conditions in the laboratory. The zygote or early embryos (with upto 8 blastomeres) could then be transferred into the fallopian tube (ZIFT–zygote intra fallopian transfer) and embryos with more than 8 blastomeres, into the uterus (IUT – intra uterine transfer), to complete its further development.”