To get cold feet A. To run for life B. To be afraid C. To fall sick D. To become discourteous

The correct answer is: B. To be afraid.

To get cold feet is to become afraid or nervous, especially about doing something that you had previously been confident about doing. It is often used in the phrase “to get cold feet at the last minute,” meaning to become afraid or nervous just before doing something that you had previously been planning to do.

The other options are incorrect. A. To run for life means to run away from danger. C. To fall sick means to become ill. D. To become discourteous means to be rude or impolite.