In which of the following fruits dispersal occurs by grazing animals ?

Options

A. Xanthium
B. Mango
C. Coconut
D. All the above

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which fruit disperses its seeds through grazing animals. We need to analyze each option provided.

2. **Analyzing the Options**:
- **Option 1: Xanthium**: This plant has seeds with barbs and hooks. These barbs are sticky and can attach to the fur of grazing animals. When the animals move, they carry these seeds to different locations, facilitating seed dispersal.
- **Option 2: Mango**: In mangoes, animals eat the fleshy part of the fruit. After eating, they often discard the seed, which can lead to dispersal. However, this process is not solely dependent on grazing animals, as it can also involve other animals and water.
- **Option 3: Coconut**: The seeds of coconuts are primarily dispersed by water. They can float and travel across water bodies, making animals irrelevant in this context.
- **Option 4: All of the above**: This option suggests that all the fruits mentioned disperse through grazing animals, which is not accurate based on our analysis.

3. **Conclusion**: Based on the analysis, the only fruit that specifically relies on grazing animals for seed dispersal is **Xanthium**. The other options either do not involve grazing animals or are not primarily dependent on them.

4. **Final Answer**: The correct answer is **Xanthium**.