(b) In most higher plants, the growing apical bud inhibits the growth of lateral (axillary) buds, a phenomenon known as apical dominance.
Removal of the apical bud (as in Plant B) usually allows the lateral buds to grow more vigorously due to the removal of this inhibitory influence.

Plant A, with its apical bud intact, would suppress the growth of its lateral buds, maintaining the phenomenon of apical dominance.

Therefore, the scenario is that Plant B will have more vigorous lateral bud growth compared to Plant A.