(C) Intrinsic semiconductors like $Si$ or $Ge$ are group $14$ elements. To create $p$-type semiconductors,they are doped with group $13$ elements,whic

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(C) Intrinsic semiconductors like $Si$ or $Ge$ are group $14$ elements. To create $p$-type semiconductors,they are doped with group $13$ elements,which are trivalent (having $3$ valence electrons). This creates an electron hole,which acts as a charge carrier.