Following the diagram of an ovum surrounded by few sperms :
Which of the following option is correct for the labelled parts $A, B$ and $C$?
$A$ $\quad$ $B$ $\quad$ $C$
Follicular cells $\quad$ Corona radiata $\quad$ Perivitelline space
Zona pellucida $\quad$ Perivitelline space $\quad$ Corona radiata
Zona pellucida $\quad$ Corona radiata $\quad$ Perivitelline space
Perivitelline space $\quad$ Zona pellucida $\quad$ Corona radiata
$A$ : The morula passes through the phase of compaction, produces two major type of cells : the peripheral cells and the inner cell mass.
$R$ : The descendants of inner cell mass become the trophoblast cells
The mammalian primitive streak gives rise to
Eye is developed from
Identify the odd one
In man sperms move after ejaculation at a rate of nearly