Thank you for reporting, we will resolve it shortly
Q.
In embryo sac, the number of synergid $\rightarrow$ egg cell $\rightarrow$ central cell $\rightarrow$ antipodal cell follows the order
Sexual Reproduction in Flowering Plants
Solution:
The functional megaspore develops into the embryo
sac containing $2$ synergids, $1$ egg cell, $1$ central cell and
$3$ antipodal cells. Thus, option (c) gives the correct
number of different cells in an embryo sac.