为什么这会呈现为“System.Web.Mvc.SelectListItem”的列表？

I'm trying to populate a DropDownList with values pulled from a property, and my end result right now is a list of nothing but "System.Web.Mvc.SelectListItem"s. I'm sure there's some minor step I'm omitting here, but for the life of me I can't figure out what it is.I'm trying to populate a DropDownList with valu