Discussion
An uncharged conductor brought near a positive charge experiences
Answer: B
Correct answer: an attractive force, through induced charge separation
The positive charge draws electrons in the conductor towards the near face and leaves the far face positive. The negative induced charge is closer, so its attraction exceeds the repulsion of the more distant positive charge, and the net force is attractive. The conductor is neutral throughout - it is the separation, not any net charge, that produces the force, which is why a charged rod attracts any uncharged conductor.
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