Which of the following animal is used a source of entertainment for human?

Options

A. Dog
B. Rabbit
C. Hen
D. Monkey

Explanation

To determine which animal is used as a source of entertainment for humans, we can analyze the options provided:

1. **Dog**: While dogs are often kept as pets and can perform tricks, they are primarily companions rather than a primary source of entertainment in a professional context.

2. **Rabbit**: Rabbits can be pets and may be featured in some entertainment contexts (like petting zoos), but they are not commonly used for entertainment in the same way as other animals.

3. **Hen**: Hens are primarily farm animals and are not typically associated with entertainment for humans.

4. **Monkey**: Monkeys are often used in entertainment settings, such as circus acts or street performances. They are known for their playful behavior and ability to perform tricks, making them a popular choice for entertainment.

Based on this analysis, the animal that is most commonly used as a source of entertainment for humans is the **monkey**.

**Final Answer**: The correct option is the fourth option: **Monkey**.

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