The correct option is A Chimaera
Chimaera is a connecting link between cartilaginous and bony fishes. Characters of cartilaginous fishes are cartilaginous skeleton, ventral mouth, two dorsal fins, claspers, placoid scales in young. Characters of bony fishes are small mouth with fleshy lips, tooth plates joined to the jaws, four pairs of gills, absence of cloaca, separate anus and urogenital aperture. Hence, option A is correct answer.