**Core Concept**
The question requires the identification of live attenuated vaccines from a list of options. Live attenuated vaccines are made from a weakened or attenuated form of a virus or bacteria that causes the disease, and are used to stimulate an immune response without causing the actual disease. This type of vaccine is used for various diseases such as measles, mumps, rubella, and chickenpox.
**Why the Correct Answer is Right**
To determine the correct answer, we need to understand the characteristics of live attenuated vaccines. These vaccines are made by reducing the virulence of the pathogen, either by serial passage in a laboratory or by genetic modification. The attenuated virus or bacteria is then used to immunize individuals, who develop immunity to the disease without suffering from the actual disease. In contrast, inactivated vaccines, toxoids, and subunit vaccines are not live attenuated.
**Why Each Wrong Option is Incorrect**
**Option A:** This is a live attenuated vaccine, made from a weakened form of the virus that causes the disease.
**Option B:** This is also a live attenuated vaccine, used to immunize against the disease caused by the virus.
**Option C:** This is not a live attenuated vaccine; it is an example of an inactivated vaccine, made from a killed form of the virus.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that live attenuated vaccines should not be given to immunocompromised individuals, as they can cause the actual disease in these individuals. Additionally, live attenuated vaccines should be stored and handled properly to prevent reversion to a virulent form.
**Correct Answer:** C. Inactivated vaccine (e.g., Hepatitis A, Influenza)
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