问题：
[单选题]You are developing an ASP.NET MVC 2 Web application. A page makes an AJAX request and expects a list of company names in the following format. ["Adventure Works"，"Contoso"] You need to write an action method that returns the response in the correct format. Which type should you return from the action method？（）
A、AjaxHelper
B、XDocument
C、JsonResult
D、DataContractJsonSerializer
参考答案：
C
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