Assertion: Sound produced by an open organ pipe is richer than the sound produced by a closed organ pipe.
Reason: Outside air can enter the pipe from both ends, in case of open organ pipe.
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.