[单选题]
A 25-L container holdsk(l;v;cx x g4s hz-4t/j )xkhl7 tkcoj.ydrogen gas at a gauge pressure of 0.25 atm and a temperature c-jk/.xtjot)k z h4l7 of $0 \; ^{\circ}C$. What mass of hydrogen is in this container?
A. $1.4 \; g$
B. $2.8 \; g$
C. $4.2 \; g$
D. $5.6 \; g$
