Assertion :- In Zea mays roots, xylem is exarch.
Reason :- The protoxylem lies towards periphery and metaxylem lies towards the centre.
A. If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but the Reason is a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.