Which stage is $NOT$ observed during embryogeny in dicots?

$A$: Eight cells of the octant stage in dicot embryogeny are formed by $2$ vertical and $1$ transverse division in the embryonal cell.
$R$: These cells are arranged in epibasal and hypobasal tiers.

Embryogenesis is the process of development of an embryo from the zygote. During this process,the zygote undergoes:

When the inner half of the oospore after the first division develops into an embryo and the outer half develops into a suspensor,this type of development is called:

$A$: Complete radicle is not produced by the hypo-basal tier of the octant embryo during Crucifer-type development.
$R$: The hypophysis cell of the suspensor contributes to the tip of the radicle in this type of development.

In angiosperms,the oospore on development produces