One litre of helium gas at a pressure of 76 cm-Hg and temperature $27^{\circ}C$ is heated till its pressure and volume are doubled. The final temperature attained by the gas is :

Question

( A ) $327^{\circ}C$
( B ) $327^{\circ}$
( C ) $627^{\circ}C$
( D ) $927^{\circ}C$