The growth form of a plant, comprising its size, shape, and orientation is known as:

Correct option is A

The correct answer is (a) habit.
· The habit of a plant refers to its growth form, including its size, shape, and general orientation. It describes whether the plant is a tree, shrub, herb, climber, or creeper, among others.
· Habit is an important characteristic used to classify plants and understand their adaptations to the environment.
Explanation of Other Options:
· Environment: Refers to the external conditions surrounding the plant, such as soil, water, temperature, and light, but not the plant's growth form.
· Habitat : Refers to the specific place where a plant naturally grows (e.g., forest, desert, or wetland), not its growth form.
· Growth pattern : While it relates to how a plant develops, it does not encompass the overall size, shape, and orientation as "habit" does.