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Either the orangutan is not angry, or he frowns upon the world. A. The orangutan frowns upon the world. B. The orangutan is not angry. C. The orangutan does not frown upon the world. D. The orangutan is angry.

CB only
DA only
AB only
CB and DA

Correct Answer: CB and DA

Explanation:

It is an example of either a or b type:
Consider CB it implies - b- a that is logically correct.
DA - it implies - a → b that is also logically correct.
AB it implies - a → - b that is logically incorrect.
Hence both CB and DA are correct.

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