Assertion: The leaves of a plant are food factories.
Reason: In photosynthesis, the green leaves of plants combine carbon dioxide and water in the presence of sunlight to make food and oxygen gas.

The correct option is A

Assertion is True, Reason is True; Reason is a correct explanation for Assertion.

Option (A):

Assertion statement:

1. Leaves of a plant are considered food factories as photosynthesis takes place in the green leaves.
2. Due to the presence of green pigment chlorophyll, photosynthesis takes place producing food.

Reason statement:

1. Photosynthesis occurs in the green leaves due to the presence of chlorophyll.
2. Chlorophyll traps solar energy and combines carbon dioxide and water to produce food and oxygen.
3. Food is produced in the form of glucose which gets transported from the leaves to other parts of the plant.

Final Answer: (A) Assertion is True, Reason is True; Reason is a correct explanation for Assertion.