Assertion : The composition of rust is `Fe_(3)O_(7)`.
Reason :Iron gets rusted in dry air.

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 but reason is false.
D. If both assertion and reason are false.

Explanation

**Step-by-Step Solution:**

1. **Understanding Rust Composition:**
- The assertion states that the composition of rust is `Fe_(3)O_(7)`. However, this is incorrect. The correct composition of rust is typically represented as `Fe2O3·xH2O`, which is hydrated iron(III) oxide. Rust is not `Fe3O7`.

2. **Understanding Rusting Process:**
- The reason states that iron gets rusted in dry air. This is also incorrect. Iron requires the presence of moisture (water) along with oxygen to rust. Rusting is an electrochemical process that occurs in the presence of both water and oxygen.

3. **Conclusion:**
- Since both the assertion and the reason are false, we conclude that the correct answer is that both statements are incorrect.

**Final Answer:**
Both the assertion and the reason are false.

---