(B) In the class $Chondrichthyes$,which includes cartilaginous fishes like sharks and rays,the mouth is located on the ventral side of the body. Speci

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(B) In the class $Chondrichthyes$,which includes cartilaginous fishes like sharks and rays,the mouth is located on the ventral side of the body. Specifically,in rays,the mouth is positioned on the $Antero-ventral$ side to facilitate feeding from the sea floor.