Only circus animals with a clean bill of health will perform in today’s exhibition. A monkey, a poodle, and a horse will perform in today’s exhibition. No circus animals with a clean bill of health were prescribed medications this week.

If the statements above are true, which one of the following must also be true on the basis of them?

A. The monkey, poodle, and horse are the only animals performing in today’s circus exhibition.

B. No circus animals were prescribed medications this week.

C. No more than two circus animals have a clean bill of health.

D. Neither the monkey nor the horse performing in today’s circus exhibition were prescribed medications this week.

I chose D. Is this correct?

And your answer is?

I said that I chose D above.

I agree.

Yes, you are correct. Option D, "Neither the monkey nor the horse performing in today’s circus exhibition were prescribed medications this week," must be true based on the given statements.

To arrive at this conclusion, let's analyze the statements provided:

1. Only circus animals with a clean bill of health will perform in today’s exhibition.
2. A monkey, a poodle, and a horse will perform in today’s exhibition.
3. No circus animals with a clean bill of health were prescribed medications this week.

From statement 1, we know that only animals with a clean bill of health will perform. This implies that the monkey, poodle, and horse all have a clean bill of health since they are the ones performing (statement 2).

Statement 3 tells us that no circus animals with a clean bill of health were prescribed medications this week. Since the monkey, poodle, and horse have a clean bill of health, it follows that none of them would have been prescribed medications this week.

Option D states that neither the monkey nor the horse performing in today's exhibition were prescribed medications this week. This aligns with the information provided in the statements, making it a valid conclusion.