Read the given statements carefully. I. In India, NACO and other NGOs are doing a lot to educate...

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Read the given statements carefully.
I. In India, NACO and other NGOs are doing a lot to educate people about AIDS.
II. To prevent HIV infections, use of disposable needles and syringes in hospitals, use of condoms during sex, control of drug abuse is necessary.
III. Ist December is celebrated as World AIDS Day.
IV. AIDS is characterised by decrease in the number of killer T-cells.
Which of the above statements are correct?
(a) I, II and IV
(b) I, II, III and IV
(c) I and III
(d) I and IV
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