Choose the correct alternative from the following :
Assertion (A) : There is no vaccine for AIDS.
Reason (R) : The AIDS virus changes its genetic code.
Option:
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.
E. Both A and R are false.
Answer: A . Both A and R are true and R is the correct explanation of A.
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Justification:
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.
