Assertion: Vessels are more efficient for water conduction as compared to tracheids.
Reason: Vessels are dead lignified.
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect
Answer is: (b)
Explanation:
Vessels are more efficient for water conduction as compared to tracheids. Vessels resemble tracheids very much in structure and function. But unlike tracheids these are like long tubes arranged in vertical row formed of cylindrical cells arranged to end with their end walls completely dissolved. These are also dead and lignified.