The correct answer is A. Aerenchyma.
Aerenchyma is a type of parenchyma tissue that is found in aquatic plants. It is characterized by large, air-filled spaces that help the plant to float. Aerenchyma also helps to transport oxygen and nutrients throughout the plant.
Collenchyma is a type of plant tissue that is composed of living cells with thickened cell walls. It is found in the stems and leaves of many plants, and it provides support and flexibility.
Sclerenchyma is a type of plant tissue that is composed of dead cells with thick, lignified cell walls. It is found in the stems, leaves, and fruits of many plants, and it provides support and strength.
No option is correct.