Directions: The sentence given below is divided into four parts (A), (B), (C) and (D). One of these parts may contain an error. You have to indicate that part as your answer. If there is no error, mark (E) as your answer.
The reason (A) for the sudden explosion (B) in the aircraft, (C) had not been discovered till date and it (D) continues to baffle all. (E) No error
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