1. Hepatitis–B and HIV can be transmitted by sharing of injection needles, razors, etc. 2. HIV can be transmitted by using surgical instruments used on for such patients and used after disinfection. 3. Hepatitis–B and HIV can be transmitted by transfusion of blood of an infected person. Regarding 1,2 and 3 :

Question

( a ) 3 is correct but 1 and 2 are incorrect
( b ) 3 is incorrect; 1 and 2 are correct
( c ) 1 is incorrect but 2 and 3 are correct
( d ) 2 is incorrect but 1 and 3 are correct