Explanation:

Introduction:
In this question, we are asked to identify the special plants that store water in their leaves. The correct answer is option 'D' - Bromeliads. Let's delve into the details to understand why.

Bromeliads:
- Bromeliads are a family of plants that belong to the Bromeliaceae family. They are native to tropical and subtropical regions of the Americas.
- One of the unique characteristics of bromeliads is their ability to store water in their leaves. This adaptation allows them to survive in environments with limited water availability, such as rainforests and deserts.
- The leaves of bromeliads are arranged in a rosette-like pattern, forming a central cup or tank where water is stored. This cup collects rainwater or moisture from the surrounding environment.
- The water stored in the leaves of bromeliads provides a vital source of hydration for the plant, especially during dry periods or in areas with erratic rainfall.
- The leaves of bromeliads are also equipped with specialized structures called trichomes, which help in water absorption and retention. These trichomes are often covered with scales or hairs that reduce water loss through evaporation.
- The stored water in the leaves of bromeliads not only sustains the plants but also creates a unique habitat for various organisms such as insects, frogs, and small invertebrates. These organisms rely on the water-filled cups of bromeliads for their survival.

Other Options:
- Rhododendron: Rhododendrons are flowering plants that belong to the genus Rhododendron. While they have various adaptations for survival, storing water in their leaves is not one of them.
- Orchids: Orchids are a diverse family of flowering plants. They have adapted to different habitats but do not typically store water in their leaves.
- Teak: Teak is a type of hardwood tree known for its strength and durability. It does not possess the characteristic of storing water in its leaves.

Conclusion:
In conclusion, bromeliads are special plants that store water in their leaves. This adaptation allows them to thrive in environments with limited water availability. The other options mentioned in the question, such as rhododendron, orchids, and teak, do not possess this unique characteristic.