Correct Answer:
B. with
Explanation:
The correct answer is with because the adjective 'married' takes a specific dependent preposition when linking to a spouse.
- Step 1 (Grammatical Rule): In standard English, the verb or adjective 'married' is paired with the preposition 'to' to indicate a marital relationship (e.g., married to someone).
- Step 2 (Correction): Using 'with' is a common structural error. The sentence must be corrected to read: 'He is married to a doctor.'
- Incorrect Options:
- is married is incorrect because the passive verb construction is grammatically sound for this description.
- a doctor is incorrect because it functions as a perfectly valid singular noun phrase completing the prepositional target.
- No error is incorrect because using 'with' after married is a distinct grammatical violation.