The Molar Specific Heat at Constant Pressure at 0 $\degree$ C of an Ideal Monatomic Gas Is
A)

The molar specific heat at constant pressure at 0 $\degree$ C of an ideal monatomic gas is

A) $\frac { 1 } { 2 } R$ .
B) R.
C) $\frac { 3 } { 2 } R$ .
D) 2R.
E) $\frac { 5 } { 2 } R$ .