The correct options are
A Human beings and cows respectively
B Human beings and pigs respectively
Tapeworm multiplies in human beings that is its definitive host . Tapeworm enters human beings through uncooked pork and beef that contain the parasite. Bovine animals like cows and pigs harbour the tapeworm. These animals serve as the reservoir hosts for tapeworm. It resides in the reservoir host in a dormant state and shows no ill effects.