Ethylene hormone is found in the form of

Options

A. gas
B. liquid
C. solid
D. all of the above

Answer

### Step-by-Step Solution:

1. **Identify the Hormone**: The question asks about the ethylene hormone, which is known as a plant growth hormone.

2. **Determine the Form of Ethylene**: Ethylene is unique among plant hormones because it is found in a gaseous state.

3. **Functions of Ethylene**: Ethylene plays a crucial role in regulating plant growth and development. It is particularly important in the processes of ripening fruits and regulating the senescence (aging) phase of plants.

4. **Conclusion**: Based on the information, the correct answer to the question is that ethylene is found in the form of a gas.

5. **Select the Correct Option**: The first option, which states that ethylene is a gas, is the correct answer. The other options (liquid, solid, and all of the above) do not accurately describe the form of ethylene.

### Final Answer:
Ethylene hormone is found in the form of a gas.

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