Assertion: Plants bend towards source of light.
Reason: The positive phototropism is shown by the shoot apex as there is differential growth due to unequal distribution of auxin.
(A) Both assertion and reason are true and the reason is a correct explanation of the assertion
(B) Both assertion and reason are true but reason is not a correct explanation of the assertion
(C) Assertion is true but the reason is false
(D) Both assertion and reason are false
