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Union rule states that if A decides B and A decides C, then A must also decide ___

12. Union rule states that if A decides B and A decides C, then A must also decide ___.

1. A and C
2. B and C
3. A and B
4. None of the above

Answer: B) B and C

Explanation:

Union rule states that if A decides B and A decides C, then A must also decide B and C.