Select the most appropriate option to fill in the blank.
I am doubtful about his story, though you seem to be ________.

Correct option is D

Option Meanings:
· Pleasant – enjoyable.
· Uncertain – unsure.
· Regretting – feeling sorrow for something.
· Convinced – completely sure or persuaded.
Correct Answer: (d) Convinced
The sentence shows contrast using “though”, suggesting the other person believes the story. Hence, “convinced” (fully believing) fits best.
Other options are unrelated to the idea of belief.
Correct Sentence:
I am doubtful about his story, though you seem to be convinced.