Assertions : Breeding and development of cultivars resistance to diseases enhances food production.
Reason : Cultivar resistance to disease reduces the dependece on use of fungicides and bacteriocides.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true bur reason is false.
D. if both assertion and reason are false.

Answer

### Step-by-Step Solution

1. **Understanding the Assertion**: The assertion states that "breeding and development of cultivars resistant to diseases enhances food production."
- **Explanation**: Cultivars refer to plant varieties that have been selectively bred for certain traits, including disease resistance. When plants are resistant to diseases, they are more likely to thrive and produce higher yields. This directly contributes to increased food production.

2. **Evaluating the Reason**: The reason given is that "cultivar resistance to disease reduces the dependence on the use of fungicides and bactericides."
- **Explanation**: Fungicides and bactericides are chemical agents used to protect plants from diseases. If a cultivar is resistant to diseases, there is less need to apply these chemicals, which can be costly and harmful to the environment. This reduction in chemical use is beneficial for both the economy and the ecosystem.

3. **Connecting Assertion and Reason**: Both the assertion and the reason are true statements. The reason provided explains why the assertion is valid.
- **Conclusion**: Since the assertion is true and the reason accurately explains the assertion, we can conclude that both statements support each other.

4. **Final Answer**: Therefore, the correct option is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.