What are the successive structures formed in course of sexual reproduction in Rhizopus ?
A. Zygospore, progametagium , gametangium, zygophore
B. Progametangium, zygophore, gametangium, zygospore
C. Progametangium, gametangium, zygospore, zygophore
D. Zygophore, progametangium, gametangium,zygospore