States of matter — practice question

In the ideal gas equation, $pV = nRT$, what units are used for $n$ and $T$?

• A$n$: no units, $T$: $^{\circ}\text{C}$
• B$n$: no units, $T$: $\text{K}$
• C$n$: mol, $T$: $^{\circ}\text{C}$
• D$n$: mol, $T$: $\text{K}$