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Q:
A) Both A and R are true and R is the correct explanation of A. | B) Both A and R are true but R is NOT the correct explanation of A. |
C) A is true but R is false. | D) A is false but R is true. |
Answer: A) Both A and R are true and R is the correct explanation of A.
Explanation:
Explanation:
A vaccine contains the inactivated germs of the disease. But the AIDS virus changes its genetic code and so on vaccine has been invented for it.