The correct option is B The adventitious leaf buds cannot act as vegetative propagules.
Bud refers to the small lateral or terminal protuberance on the stem of a plant that may develop into a flower, leaf, or shoot.
The buds that arise from the meristematic tissues of stem apex are called apical buds while the ones that arise from the meristematic tissue present at the axil of a leaf are called axillary buds.
Adventitious buds grow out of different places other than the apex of the plant or the axil of the leaf. They serve as vegetative propagules in many plants.