All omnivores are herbivores. No herbivores are carnivores. Some carnivores are humans. Which of the following conclusions are TRUE? CONCLUSIONS: I. Some humans are carnivores. II. No carnivores are omnivores. III. Some omnivores are carnivores.

Explanation

Let's analyze the given statements and the conclusions:

Given statement

1. All omnivores are herbivores.
2. No herbivores are carnivores.
3. Some carnivores are humans.

Conclusion:

• I. Some humans are carnivores.
  This is true based on the third statement, which explicitly says some carnivores are humans.

• II. No carnivores are omnivores.
  This is true because all omnivores are herbivores, and no herbivores are carnivores (as per the second statement).

• III. Some omnivores are carnivores.
  This is false because no herbivores (and hence no omnivores, since they are herbivores) can be carnivores, according to the second statement.

Conclusion:

Thus, the correct answer is: a. I and II.

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