Select the most appropriate option to substitute the highlighted segment in the given sentence.
Abu said that he saw the picture.

Correct option is D

The most appropriate option to substitute the highlighted segment in the given sentence is (d) “he had seen the picture”.
•  The past perfect tense is used to talk about an action that happened before another action in the past, and in this sentence, the action of seeing the picture happened before Abu said it.
•  "He has seen the picture" is in the present perfect tense, which is not appropriate in this context.
•  "He will have seen the picture" is in the future perfect tense, which is not appropriate in this context.
•  "He would have seen the picture" is in the past conditional tense, which implies a hypothetical situation and is not appropriate in this context.