The correct option is C Centrolecithal
Isolecithal egg has a even distribution of yolk in the cytoplasm.
Microlecithal egg has small or less amount of yolk.
Centrolecithal egg has the yolk concentrated in the centre of the ovum.
Telolecithal egg has an uneven distribution of yolk in the cytoplasm.
Thus, the correct answer is option C.