Assertion:Upward movement of water is called ascent of sap.
Reason:Upward movement of water occurs through xylem and phloem.
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 reson is false.
D. If both assertion and reason are false.