The correct answer is A. 2143.
The sentence is “Rahul enjoyed playing volleyball.” The verb “enjoyed” comes before the subject “Rahul,” and the object “playing volleyball” comes after the verb. The order of the words in the sentence is important to maintain the meaning of the sentence.
Option B, 2134, is incorrect because the verb “enjoyed” comes after the subject “Rahul.” This would make the sentence “Rahul playing volleyball enjoyed.” This sentence does not make sense because the verb “enjoyed” needs a subject to act upon.
Option C, 3241, is incorrect because the object “playing volleyball” comes before the verb “enjoyed.” This would make the sentence “Playing volleyball Rahul enjoyed.” This sentence does not make sense because the object “playing volleyball” needs a verb to act upon.
Option D, 3412, is incorrect because the object “playing volleyball” comes after the subject “Rahul.” This would make the sentence “Rahul playing volleyball enjoyed.” This sentence does not make sense because the object “playing volleyball” needs a verb to act upon.