| Q.8 | How is Hepatitis B prevented? | |
| Ans | A. Four injections over a period of six to 12 months are required. | |
| B. Three injections over a period of six to 12 months are required. | ||
| C. Three injections over a period of 12 to 18 months are required. | ||
| D. Four injections over a period of 12 to 18 months are required. |
Correct Ans Provided: B