Embryo with more than $16$ blastomeres formed due to in vitro fertilisation is transferred into

Which of the following techniques is used for embryo transfer in women who cannot conceive?

$IVF$ in which the early zygote with up to $A$ blastomeres is transferred to the Fallopian tube is called $B$.

$A$: Inability to conceive or produce children even after $2$ years of unprotected sexual cohabitation is called infertility.
$R$: Infertility is a synonym for sterility.

In the process of in vitro fertilization,which of the following is transferred into the fallopian tube?

$A$: In test-tube baby programme,ova from wife/donor (female) and sperms from the husband/donor (male) are collected and induced to form zygote under simulated conditions in laboratory.
$R$: Embryos with more than $8$ blastomeres are then transferred to fallopian tube $(ZIFT)$ to complete its further development.