During an Adiabatic Compression, a Volume of Air Decreases to 1/4

Multiple Choice

During an adiabatic compression, a volume of air decreases to 1/4 its original size. Calculate its final pressure if its original pressure was 1 atm. (Assume the air behaves like an ideal gas with γ = 1.4.)

A) 7.0 atm
B) 5.6 atm
C) 3.5 atm
D) 2.2 atm
E) 0.14 atm