Select the most appropriate option to fill in the blank and complete the collocation.
Always be in___________ with your near and dear ones as life is uncertain and fragile.

Correct option is A

The collocation is "be in touch with" someone, which means to communicate with them regularly or maintain contact with them.
· In the given sentence, the speaker is advising to always be in touch with loved ones because life is uncertain.
· Therefore, option (a) is the most appropriate option to fill in the blank.