Hydrogen Fluoride Will React with Glass (Silicon Dioxide,SiO₂)according to the Equation

Hydrogen fluoride will react with glass (silicon dioxide,SiO₂) according to the equation below.What mass of HF is required to react completely with 16.0 g of glass?[Molar masses: Si,28.09 g/mol; F,19.00 g/mol; H,1.01 g/mol; O,16.00 g/mol] 4HF(g) + SiO₂(s) → SiF₄(g) + 2H₂O(g)

A) 5.33 g
B) 21.3 g
C) 64.0 g
D) 80.0 g
E) 320 g