下拉列表中的数据绑定

I am practicing MVC 4 Razor,i want to display the list data in Dropdownlist,I have tried many options but i am not able to populate data ,i am using WCF Service I tried using List and IEnum i am able get data in controller but how to display data in drop down list.I have pasted my code hereI am practicing MVC 4 Razor,i want to display t