$0.200\text{ mol}$ ethanenitrile is allowed to react with excess dilute sodium hydroxide. Only organic compound S and ammonia gas are formed. The yield for this reaction is $80.0\%$. What mass of S is produced?
- A$9.60\text{ g}$
- B$13.1\text{ g}$
- C$15.4\text{ g}$
- D$16.4\text{ g}$