You Must Use 168 G of Carbon Disulfide (CS₂,76 $\circ$ CCalculate the Number of Grams of CH₃CN Required

You must use 168 g of carbon disulfide (CS₂,76.13 g/mol) with acetonitrile (CH₃CN,41.06 g/mol) to create a solution that has a total vapor pressure of 292 torr at 25 ^$\circ$ C.Calculate the number of grams of CH₃CN required.

A) 40.6 g
B) 29.1 g
C) 90.6 g
D) 42.1 g
E) 4.93 g