Which of the following plant hormone is used to speed up the malting process in brewing industry?

Options

A. `GA_(3)`
B. Ethylene
C. Cytokinin
D. Auxin

Answer

To answer the question regarding which plant hormone is used to speed up the malting process in the brewing industry, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question asks for a specific plant hormone that accelerates the malting process in brewing. Malting is a process that involves germinating cereal grains, primarily barley, to produce malt.

2. **Review the Options**: The options provided are:
- A) Gibberellic Acid (GA3)
- B) Ethylene
- C) Cytokinins
- D) Auxins

3. **Analyze Each Option**:
- **Gibberellic Acid (GA3)**: This hormone is known to promote growth and is specifically involved in the germination process. It helps in the breakdown of starches into sugars, which is crucial during malting. Therefore, it is likely the correct answer.
- **Ethylene**: This hormone is primarily associated with fruit ripening and does not play a significant role in the malting process. Hence, it is incorrect.
- **Cytokinins**: These hormones are known for promoting cell division and are not specifically linked to the malting process. Thus, this option is also incorrect.
- **Auxins**: Auxins are involved in various growth processes, including cell elongation and root development, but they do not directly influence malting. Therefore, this option is incorrect as well.

4. **Conclusion**: Based on the analysis, the hormone that speeds up the malting process is **Gibberellic Acid (GA3)**.

### Final Answer:
The correct answer is **Gibberellic Acid (GA3)**.

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