Correct Answer: Botany

Solution : The correct choice is the fourth option.

Botany is the branch of biology that specifically deals with the scientific study of plants, including their structure, growth, reproduction, metabolism, development, and diseases. It is the most precise and accurate term to represent the given concept.

The meanings of the other options are as follows:

• Plantation: This term refers to a large area of land where crops are grown, typically for commercial purposes.
• Environment: This term refers to the surroundings or conditions in which a person, animal, or plant lives.
• Biology: This is a broader term that encompasses the study of living organisms, including plants.