Assertion : Vaccination is also called preventive inoculation.
Reason: A vaccine prevents the formation of antibodies inside the body.

Options

A. If both Assertion and Reason are true and Reason is correct explanation of Assertion.
B. If both Assertion and Reason are true but Reason is not correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Vaccination is also called preventive inoculation." This is true because vaccination is a method used to prevent diseases by introducing a vaccine into the body, which helps to develop immunity against specific pathogens.

2. **Understanding the Reason**: The reason provided is "A vaccine prevents the formation of antibodies inside the body." This statement is incorrect. Vaccines actually stimulate the immune system to produce antibodies against specific pathogens.

3. **Evaluating the Assertion and Reason**: Since the assertion is true and the reason is false, we can conclude that the assertion stands alone in its correctness.

4. **Conclusion**: Therefore, the correct answer is that the assertion is true and the reason is false.