单项选择题
A.var lists1=from p in lists where p.Salary >5000orderby p.Salary descending select p；
B.var list1=lists.Where（n =>n.Salary >5000）.OrderByDescending（n =>n.Salary）.Select（n =>n）；
C.var lists1=from p in lists select p where p.Salary >5000orderby p.Salary descending ；