The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Vegetative propagation is a method of reproduction in which plant parts produces new plants or young ones. This is because the meristematic cells of the stems, roots, tubers, rhizomes stolons, bulbs, buds and even leaves are capable of cellular differentiation e.g., potatoes multiplying by tubers.
Therefore, the correct answer is option B.