Plz answer this ques.....

Dear Student, 

Option 2 is correct. 
That is because Restriction endonucleases are given to patients who are suffering from HIV infection. They help in getting rid of the virus from the patient. 

Option 3 is incorrect because the causative organism for Malaria is Plasmodium(a protozoa). Whereas Female Anopheles mosquito is the carrier;it help in transmitting the disease.
Regards 

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