Semiconductor A has a higher band gap than semiconductor

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Semiconductor A has a higher band gap than semiconductor B. If both A and B have the same dimensions, the same number of electrons at a given temperature and the same electron and hole mobilities, then:

1. A has the same number of holes as B
2. A has a larger number of holes than B
3. A has less number of holes than B
4. Any of the above statements (A), (B) or (C) could be true

Correct Option: B

NA