A farmer while growing grape plants in his garden, observes the following:
(i) Fruit size normally remained small.
(ii) Natural seed abortion.
(iii) Reduced stem and leaf growth.
Which problems could be solved by application of gibberellic acid during the development of fruits?

Options

A. (i) and (ii)
B. (i) and (iii)
C. (i),(ii) and (iii)
D. None of these

Explanation

To solve the problem presented in the question regarding the grape plants, we will analyze the observations made by the farmer and how gibberellic acid can address these issues.

### Step-by-Step Solution:

1. **Identify the Observations**: The farmer has observed three main issues with his grape plants:
- (i) Fruit size normally remained small.
- (ii) Natural seed abortion.
- (iii) Reduced stem and leaf growth.

2. **Understand Gibberellic Acid**: Gibberellic acid is a plant hormone that promotes growth and development in plants. It is known to influence various processes, including fruit development, stem elongation, and leaf expansion.

3. **Analyze Each Observation**:
- **Observation (i)**: The small fruit size can be addressed by gibberellic acid, as it is known to increase the size and number of fruits by promoting cell division and elongation.
- **Observation (ii)**: Natural seed abortion is not directly influenced by gibberellic acid. While gibberellins can promote fruit set and development, they do not prevent seed abortion.
- **Observation (iii)**: Reduced stem and leaf growth can also be improved by gibberellic acid, as it promotes elongation and growth of stems and leaves.

4. **Determine Which Problems Can Be Solved**: Based on the analysis:
- Gibberellic acid can help with:
- (i) Increasing fruit size.
- (iii) Enhancing stem and leaf growth.
- It does not address (ii) natural seed abortion.

5. **Conclusion**: The problems that could be solved by the application of gibberellic acid during the development of fruits are (i) and (iii).

### Final Answer:
The correct answer is **1 and 3**.

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