A) doping converts the semiconducting material into a metallic material like copper.
b) doping makes the charge carriers mobile.
c) doping makes the charge carriers immobile.
d) doping changes the conductive properties of the semiconductors.
e doping makes the semiconducting material non-conducting.

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  1. well, the question is whether b or d is the"best explaination".

    I vote for d.

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