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Consider the following statements about agent architectures.

1. A simple reflex agent uses only the current percept

2. A model based agent maintains internal state

3. A utility based agent cannot handle conflicting goals

Which of the statements given above is or are correct?

  • A.1 and 3 only
  • B.2 and 3 only
  • C.1, 2 and 3
  • D.1 and 2 only

Answer: D

The first two are correct. Handling conflicting goals is precisely what a utility function is for, since it converts incomparable objectives into a single ranking. A goal based agent is the one that cannot resolve conflicts, having only a binary criterion. The three statements together trace the ladder of architectures, and the third inverts the very capability that motivates the last rung.

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