Which one of the following statement is false?

p-type semiconductor are obtained by adding a small amount of trivalent impurity to a pure sample of semiconductor (Ge). Majority charge carriers-holes Minority charge carriers-electrons n-type semiconductor are obtained by adding a small amount of pentavalent impurity to a pure sample of semiconductor $(\mathrm{Ge})$. Majority charge carriers-electrons The resistance of intrinsic semiconductors decreases with increase of temperature.