Sodium azide ($$NaN_3$$) is used in the airbag of cars. This is a safety device which inflates on an impact according to the reaction $$2NaN_3 \rightarrow 2Na + 3N_2$$. An air bag of a particular car can be filled with 44.8 L of gas at STP. The mass (g) of $$NaN_3$$ required to fill this airbag completely at 298K and 1 atm. pressure is

A

87

B

130

C

84

D

100