Bryophyllum diagremontianum is characterised, by the formation of

Bryophyllum diagremontianum is characterized, by the formation of plantlets in leaf notches while attached to the plant. The multiplication of the plant takes place by vegetative propagation. Bryophyllum is multiplied vegetatively by leaves. The leaves of the Bryophyllum has an adventitious bud in its notch which is meristematic in nature and sprouts when attached to the plant. It adventitious bud has the potential to germinate into new plantlet when it falls on the moist soil by rooting.

So, the correct answer is option A.