Only Astronomers Are Allowed in the Observatory

question 251

Multiple Choice

Only astronomers are allowed in the observatory.

• A) Some astronomers are persons allowed in the observatory.
• B) Some persons allowed in the observatory are astronomers.
• C) All astronomers are persons allowed in the observatory.
• D) No astronomers are persons not allowed in the observatory.
• E) All persons allowed in the observatory are astronomers.

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