The reaction of silver metal and dilute nitric acid proceeds

The reaction of silver metal and dilute nitric acid proceeds according to the equation below. If 0.20 moles of powdered silver is added to 100 milliliters of 6.0 molar nitric acid, the number of moles of NO gas that can be formed is:3Ag(s) + 4HNO3 –> AgNO3 + NO(g) + 2H2Oa) 0.15b) 0.05c) 0.20d) 0.60e) .067