Considering That PV = NRT, Which One of These Samples $\circ$

Considering that PV = nRT, which one of these samples contains the largest number of particles? STP= 0 ^$\circ$ C and 1 atm.

A) 2.0 L of H₂ at STP
B) 2.0 L of N₂ at STP
C) 2.0 L of H₂ at 25 ^$\circ$ C and 760 torr
D) 2.0 L of N₂ at 0 ^$\circ$ C and 900 torr
E) 2.0 L of He at STP