What is the transfer of an embryo with more than $8$ blastomeres into the uterus called?

Match the Assisted Reproductive Technologies $(ART)$ in Column $I$ with their respective processes in Column $II$ and select the correct option:

Column $I$	Column $II$
$a$. $ZIFT$	$i$. Single sperm cell is injected directly into the cytoplasm of an ovum
$b$. $GIFT$	$ii$. Fertilized egg is transferred to the fallopian tube for further development
$c$. $ICSI$	$iii$. Sperms are introduced into the uterus
$d$. $IUI$	$iv$. Ova and sperms are directly injected into regions of the oviduct where fertilization occurs

Briefly explain $IVF$ and $ET$. What are the conditions in which these methods are advised?

The stage transferred into the uterus after induced fertilization of ovum in the laboratory is

In Zygote Intrafallopian Transfer $(ZIFT)$,the embryo up to . . . . . . stage is transferred into the fallopian tube.

Test tube babies are produced by