A local restaurant gives teachers a 20\% discount on all their meals. If a teacher pays $14.00 for a meal after the discount was applied, what was the price of the meal before the discount? 
选项为:A:$ \textbackslash$16.90$  B:$ \textbackslash$17.50$  C:$ \textbackslash$20.00$  D:$ \textbackslash$25.20$  请回答其中一个选项.