Correct Answer: To become afraid to do something

Solution : The correct choice is the second option .

The phrase "to get cold feet" is often used when someone is losing courage or confidence about a decision or an action they were planning to take, usually at the last minute. For example, if someone agrees to give a speech but starts feeling very nervous and considers backing out right before, they are getting cold feet.

Therefore, the correct answer is, "to become afraid to do something".