tribulation A. contribution B. delivery C. distribution D. great difficulty or trouble

D. great difficulty or trouble

Explanation:
"Tribulation" refers to a state of severe trial or suffering, misfortune, or distress.

The other words do not match its meaning:

A. contribution → giving or supplying something.

B. delivery → bringing something to someone, or the act of giving birth.

C. distribution → the act of spreading or supplying something widely.

So the correct answer is D.