Coconut water contains

Explanation

### Step-by-Step Solution:

1. **Understanding Coconut Water**: Coconut water is the clear liquid found inside young, green coconuts. It is often confused with coconut milk, but they are different; coconut milk is made from the grated flesh of mature coconuts mixed with water.

2. **Composition of Coconut Water**: Coconut water primarily consists of liquid endosperm. This endosperm is the nutrient-rich tissue that supports the developing embryo in the seed.

3. **Presence of Plant Hormones**: Coconut water is known to be rich in plant hormones, specifically cytokinin. Cytokinins are a class of plant hormones that promote cell division and growth.

4. **Absence of Other Hormones**: In coconut water, other plant hormones such as auxins, gibberellins, and abscisic acid are not present. This makes cytokinin the predominant hormone in coconut water.

5. **Conclusion**: Therefore, coconut water contains liquid endosperm and is rich in the plant hormone cytokinin.