I think its a MGMAT question
Unlike lions and tigers, whose hyoid bones vibrate loosely to create their trademark roars, the hyoid bones of domestic felines do not move and so housecats cannot roar.
A) whose hyoid bones vibrate loosely to create their trademark roars, the hyoid bones of domestic felines
B) whose hyoid bones vibrate loosely to create the cats' trademark roars, domestic felines have hyoid bones that
C) whose hyoid bones vibrate loosely to create the cats' trademark roars, the hyoid bones of domestic felines
D) who have hyoid bones that vibrate loosely to create their trademark roars, domestic felines have hyoid bones that
E) which have loosely vibrating hyoid bones that create their trademark roars, domestic felines have hyoid bones that
Confused between B and D, i picked D......OA is B