Nitroglycerin, Used Both in Medicine and as an Explosive, Can

Nitroglycerin, used both in medicine and as an explosive, can be prepared by the carefully controlled reaction of glycerol (C₃H₈O₃) with nitric acid, as symbolized by: C₃H₈O₃ + 3 HNO₃ → C₃H₅N₃O₉ + 3 H₂O
What mass of nitric acid is required for the production of 2.8 g of nitroglycerin by a process having a 67% yield?

A) 2.3 g
B) 0.39 g
C) 1.6 g
D) 3.5 g
E) 1.2 g