Whooping cough, measles and mumps are prevented by:

Correct answer: Vaccination. Vaccination prevents these infectious diseases (for example, through the DPT and MMR vaccines).

• Antibiotic: Antibiotics treat bacterial infections but do not prevent measles or mumps, which are viral.
• Quarantine: Quarantine limits spread but does not prevent these diseases.
• None of these: “None of these” is incorrect because vaccination is correct.