Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Developing and maintaining healthy friendships involves give-and-take. Sometimes you're the one giving support, and other times you're on the receiving end. (1) ____________ friends know you care about them and appreciate them can help strengthen your bond. It's as (2) ____________ for you to be a good friend as it is to surround yourself with good friends. Remember, it's never too late to build new friendships (3) ____________ reconnect with old friends. Investing time in making friends and strengthening your friendships can pay off in better health and a (4) ____________ outlook for years to come.

(1) ____________ friends know you care about them and appreciate them can help strengthen your bond.

A. Telling

B. Allowing

C. Letting

D. Enabling