A Sample of Gas at 475 $\circ$ C Is Allowed to Cool at Constant Volume Until Its

A sample of gas at 475.0 ^$\circ$ C is allowed to cool at constant volume until its pressure is one-fifth of its original value.What is the final temperature of the gas?

A) "-50.67 ^$\circ$ C"
B) "95.00 ^$\circ$ C"
C) "273.2 ^$\circ$ C"
D) "149.6 ^$\circ$ C"
E) "-123.5 ^$\circ$ C"