Artificial intelligence
A natural language generation program must decide:

why it is being used
None of these
what to say
both (a) and (b)
when to say something

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Artificial intelligence
An algorithm A is admissible if ___________

It is not guaranteed to return an optimal solution when one exists
It guarantees to return more optimal solutions
It returns more solutions, but not an optimal one
It is guaranteed to return an optimal solution when one exists

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