The correct option is D All of the above
The classification of plants based on the types of stems are:
a) Herb: A plant whose stem is green and thin and generally dies at the end of each growing season is a herb. Example: Basil.
b) Shrub: A shrub or bush is a small to medium-sized woody plant. It has persistent woody stems above the ground. Example: Rose plant.
c) Tree: A plant having a woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground is a tree. Example: Mango tree.