Several paper clips dangle from the north pole of a magnet. the induced pole in the bottom of the lowermost paper clip is a

The induced pole in the bottom of the lowermost paper clip is a north pole.

d. learned preferences i believe is your answer

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.