At the 2013 Winnebago County Fair a vendor is offering a "fair special" on sandals. If you buy one pair of sandals at the regular price of $\textbackslash$ 50$, you get a second pair at a $40 \textbackslash\%$ discount, and a third pair at half the regular price. Javier took advantage of the "fair special" to buy three pairs of sandals. What percentage of the $\textbackslash$ 150$ regular price did he save? (2013 AMC 8, Question \#12) 
选项为:A:$$25$$  B:$$30$$  C:$$33$$  D:$$40$$  E:$$45$$  请回答其中一个选项.