Look of the diagram shown below and mark the correct option. A: represents animals that live in water. B: represents animals that live on land. Which of these animals best represent 'X'? (i) Tortoise (ii) Crocodile (iii) Shark (iv) Star fish

• A.  Only (i)  
• B.  Only (ii)
• C. Both (i) and (ii)      
• D.    All of these