Special cellular thickenings are observed at the micropylar end of the synergids. Identify the option which correctly identifies these structures and their function.

Options

A. Filiform apparatus - helps in the guidance of the pollen tube into the synergid
B. egg apparatus - forms the mature, 8- nucleate and 7-celled, angiospermic embryo sac
C. antipodal cells - provision of nourishment to the egg apparatus
D. central cell - characterizes the female gametophyte and allows the initiation of double fertilization as required

Answer

A