For artificial ripening of fruit which of the following is used ?

Options

A. Testosterone
B. Insulin
C. Ethylene
D. Estrogen

Answer

To determine which substance is used for artificial ripening of fruits, we will analyze the provided options one by one.

### Step-by-Step Solution:

1. **Evaluate Option 1: Testosterone**
- Testosterone is a sex hormone primarily involved in the development of male characteristics and reproductive functions. It does not play a role in fruit ripening.
- **Conclusion**: Not used for artificial ripening.

2. **Evaluate Option 2: Insulin**
- Insulin is a hormone produced by the pancreas that regulates blood glucose levels. It is not related to the ripening process of fruits.
- **Conclusion**: Not used for artificial ripening.

3. **Evaluate Option 3: Ethylene**
- Ethylene is a hydrocarbon (C2H4) and is known as a plant hormone. It is a colorless, flammable gas that plays a crucial role in the ripening of fruits. Ethylene is widely used in agriculture to accelerate the ripening process.
- **Conclusion**: This is the correct answer as it is used for artificial ripening.

4. **Evaluate Option 4: Estrogen**
- Estrogen is a sex hormone that regulates the female reproductive system and secondary sexual characteristics. It does not have any known role in fruit ripening.
- **Conclusion**: Not used for artificial ripening.

### Final Answer:
Based on the evaluations, the substance used for artificial ripening of fruits is **Option 3: Ethylene**.

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