In which one of the following the genus name,its two characters and its class/phylum are correctly matched?
A. Genus name-Aurella, Two characters-(a) cnidoblasts, (b) organization, Class/phylum-coelenterata
B. Genus-Ascaris, Two characters-(a) Body segmented, (b) Females distinct, Class/phylum-Amphibia
C. Genus name-Pteropus, Two characters-(a) Skin possesses hair, (b) Oviparous, Class/phylum-Mammalia
D.