In which stage do the bivalent chromosomes appear as tetrads?

$A -$ Meiosis is called the reduction division.
$R -$ It reduces the chromosome number by half while making the gametes.

Assertion : Meiosis $II$ is known as equational or homotypic division.
Reason : Meiosis $II$ produces the same number of chromosomes in the daughter cells as in the parent cell.

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

During meiosis,how many cells are formed from a single cell?

Meiosis involves two successive divisions. These divisions are: