Which of the following statements is true for an $N$-type semiconductor?
- AElectrons are minority carriers and pentavalent atoms are added as impurities.
- BHoles are minority carriers and pentavalent atoms are added as impurities.
- CHoles are majority carriers and trivalent atoms are added as impurities.
- DElectrons are majority carriers and trivalent atoms are added as impurities.
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