Find out whether there is any grammatical error in below sentence. The Indian radio / which was previously controlled by the British rulers / is free now from the narrow vested interests.

The correct answer is D. No error.

The sentence is grammatically correct. The word “which” is used to introduce a relative clause that modifies the noun “radio.” The relative clause tells us that the radio was previously controlled by the British rulers. The verb “is” agrees with the subject “radio.” The prepositional phrase “from the narrow vested interests” modifies the verb “is free.”

Here is a breakdown of each option:

• Option A: The Indian radio. This is the subject of the sentence. It is a noun phrase that consists of the article “the,” the noun “Indian,” and the noun “radio.”
• Option B: which was previously controlled by the British rulers. This is a relative clause that modifies the noun “radio.” It tells us that the radio was previously controlled by the British rulers.
• Option C: is free now from the narrow vested interests. This is the predicate of the sentence. It consists of the verb “is,” the adverbial phrase “now,” and the prepositional phrase “from the narrow vested interests.”
• Option D: No error. This is the correct answer. The sentence is grammatically correct.