[单选题]
A cylinder contains 16 g of )0cl+ye1sr na9 fsr1c+cx2 guhj ;js881mgpj3- gzfxeelium gas at STP. How much energy is needed to raise the temperature j-pzg;fjs3 x8j1em8g of this gas to $20 \; ^{\circ}C$?
A. $789 \; J$
B. $798 \; J$
C. $879 \; J$
D. $998 \; J$