Question

# Mother dolphins whistle to their calves frequently after birth so that the calves will learn recognising their distinctive whistle.

**A**

##### learn recognising their distinctive whistle.

**CORRECT ANSWER**

**WRONG ANSWER**

**B**

##### learn to recognise their distinctive whistle.

**CORRECT ANSWER**

**WRONG ANSWER**

**C**

##### will learn to recognise their distinctive whistle.

**CORRECT ANSWER**

**WRONG ANSWER**

**D**

##### learn to recognise their mother's distinctive whistle.

**CORRECT ANSWER**

**WRONG ANSWER**

Correct option is

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