Explanation:

Introduction:
Leaves are important organs of plants that are involved in the process of photosynthesis. They are responsible for the absorption of sunlight, exchange of gases, and transpiration. The structure of leaves varies depending on the habitat in which the plant grows.

Thick Cuticle:
The cuticle is a waxy layer that covers the surface of leaves and stems of plants. It acts as a protective barrier against excessive water loss and provides protection against diseases, pests, and environmental stresses. The thickness of the cuticle varies among different plant species and is influenced by the habitat in which the plant grows.

Plants in Dry Habitats:
Plants that grow in dry habitats, such as deserts or arid regions, face the challenge of water scarcity. These plants have adapted to conserve water and minimize water loss through various mechanisms, one of which is the development of a thick cuticle. The thick cuticle reduces the rate of transpiration by acting as a physical barrier, preventing the loss of water vapor from the leaf surface. This adaptation helps the plants to survive in dry environments by reducing water loss and maintaining hydration.

Advantages of Thick Cuticle in Dry Habitats:
1. Reduced Water Loss: The thick cuticle reduces the rate of transpiration, which is the loss of water vapor from the leaf surface. This reduces water loss and helps the plant to conserve water in dry habitats.
2. Protection against UV Radiation: In dry habitats, the intensity of sunlight and UV radiation is often high. The thick cuticle provides protection against excessive UV radiation by reflecting or absorbing the harmful rays.
3. Protection against Pests and Diseases: The thick cuticle acts as a physical barrier, preventing the entry of pests and pathogens into the leaf tissues. This reduces the risk of infections and diseases.
4. Minimization of Environmental Stresses: Dry habitats can be characterized by extreme temperatures, strong winds, and limited nutrient availability. The thick cuticle helps in minimizing the impact of these environmental stresses on the plant.

Therefore, it is correct to say that leaves possess a thick cuticle in plants of dry habitats (option B) to adapt to the challenges of water scarcity and harsh environmental conditions.