A clinic has 1,000 vaccine doses available. Option A is a live attenuated vaccine requiring a single dose per person with 95% efficacy. Option B is an inactivated vaccine requiring two doses per person (prime and booster) with 85% efficacy once the two-dose series is complete. If the clinic uses only Option A, how many people are expected to be protected? If the clinic uses only Option B (administering all doses as boosters where needed), how many people are expected to be protected? Choose the correct numerical comparison.

• A. Option A: approximately 1,000 people protected because live vaccines always protect everyone who receives a dose; Option B: 425 people protected.
• B. Option A: approximately 950 people protected; Option B: approximately 425 people protected.
• C. Option A: approximately 850 people protected; Option B: approximately 500 people protected.
• D. Option A: approximately 950 people protected; Option B: approximately 950 people protected because two doses double immunity for each person.

Answer: (B)