[单选题]
An ideal gas occupie(z29xmxzx kbg9pj5-fmes/x ;)agr) ns bb/3 6q9soefy $600 \; cm^{3}$ at $20 \; ^{\circ}C$. At what temperature will it occupy $1200 \; cm^{3}$ if the pressure remains constant?
A. $10 \; ^{\circ}C$
B. $40 \; ^{\circ}C$
C. $100 \; ^{\circ}C$
D. $313 \; ^{\circ}C$
