Condensation of chromosomes occurs in

$A -$ During the formation of reproductive cells,meiotic cell division occurs.
$R -$ During meiosis,the genetic material is replicated twice and the cell divides twice.

Chromosomes are arranged in pairs on the metaphase plate during:

$A$: Meiosis occurs only in diploid $(2n)$ cells.
$R$: Meiosis-$I$ is known as reductional division.

Which phase of meiosis lasts for a very long duration?

Match Column-$I$ with Column-$II$ and select the correct option.
Column-$I$ | Column-$II$
$(a)$ Pachytene | $(i)$ Synizesis
$(b)$ Zygotene | $(ii)$ Chiasmata
$(c)$ Diplotene | $(iii)$ Terminalization
$(d)$ Leptotene | $(iv)$ Crossing over
$(e)$ Diakinesis | $(v)$ Synapsis