He was sentenced to four year’s imprisonment.

The correct answer is D. convicted.

To convict someone means to find them guilty of a crime. In the context of the sentence, “He was sentenced to four year’s imprisonment,” the person was found guilty of a crime and sentenced to four years in prison.

The other options are incorrect because they do not accurately describe the situation.

• Option A, punished, is incorrect because it is too general. Punishment can take many forms, such as imprisonment, fines, or community service. In the context of the sentence, the person was sentenced to four years in prison, which is a specific type of punishment.
• Option B, acquitted, is incorrect because it means to find someone not guilty of a crime. In the context of the sentence, the person was found guilty of a crime and sentenced to four years in prison.
• Option C, assigned, is incorrect because it means to give someone a task or responsibility. In the context of the sentence, the person was sentenced to four years in prison, which is not a task or responsibility.