Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.
The magistrate asked the prisoner what was he doing with his hand in the gentleman’s pocket.

Correct option is C

Option (c) contains an error.
· The error in option (c) is in the word order of the reported question. When converting a question to indirect speech, the subject should come before the verb. The correct structure should be: "what he was doing" instead of "what was he doing."
· Grammatical rule used: In reported speech, questions are usually converted by changing the word order from the subject-verb inversion (used in direct questions) to a standard subject-verb order.