Which options correctly identifies artificial and natural methods of vegetative propagation?

Layering- Bulbils

Layering is a type of horticultural or artificial method of vegetative propagation in which adventitious roots are induced to develop on a soft stem while it is still attached to the plant. Bulbils are multicellular fleshy buds that take part in natural vegetative propagation, e.g., Oxalis, Agave, pineapple.