Assertion (A): Amount of secondary xylem produced is more than the secondary phloem in the dicot stem.

Reason (R): Cambium is generally more active on the inner side than on the outer.

1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

3. If Assertion is a true statement but the reason is false.

4. If both Assertion and Reason are false statements.

a. Annual rings are bands of secondary phloem and medullary rays.

b. The wood of Cycas has vessels.

c. Conjoint vascular bundles are found in the leaves of sunflowers and maize.

Which of the above statement(s) is/are correct?

1. a & b are correct

2. b & c are correct

3. Only a is correct

4. Only c is correct