工业固体废弃物、危险废物应当按照国家有关规定（）收集运输（）混入城市生活垃圾。

A.单独；严禁

B.单独；可以

C.混合；可以

D.单独；允许

Pat will walk from intersection X to intersection Y along a route that is confined to the square grid of four streets and three avenues shown in the map above. How many routes from X to Y can Pat take that have the minimum possible length ？（）

A.Six

B.Eight

C.Ten

D.Fourteen

E.Sixteen