Correct option:Animals has two separate circulatory pathways is Whale.     

Explanation for the correct option:   

• Whale belongs to the Class- Mammalia, Order Sirenia .
• The blood circulation seen in them is double circulation.
• Complete 4 chambered organism.
• The two types of circulation include pulmonary circulation and systemic circulation.

Explanation for the incorrect option:

• Shark, frog, lizard do not have two separate circulatory pathways.
• Out of Shark, frog, lizard, none of them belong to the Class Mammalia, instead all of them belong to the lower classes then them.