Starting from the innermost part, the correct sequence of parts in an ovule are

Options

A. egg, nucellus, embryo sac, integument
B. egg, embryo sac, nucellus, integument
C. embryo sac, nucellus, integument, egg
D. egg, integument, embryo sac, nucellus

Answer

B

Explanation

Egg cell is inside the embryo sac in the ovule. The embryo sac is further enclosed by the parenchymatous tissue, nucellus, which privides nutrition to developing embryo. Nucellus is ultimately surrounded by integuments.