Intine of pollen grains is composed of

Select incorrect statement regarding microsporogenesis in an anther

Endothecium layer of anther lobes is present

Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d.$ Correctly identify

$a\quad \;b\quad\;c\quad\;d$

$A$ : Each cell of the sporogenous tissue is capable of giving rise to a microspore tetrads.
$R$ : Most abundant microspore tetrads is the product of simultaneous cytokinesis.