Which code segment should you use?

You are implementing an ASP.NET page. Client-side script requires data.
Your application includes a class named Person with a Name property of type string. The code-behind file of the page includes the following code segment.
public string JsonValue;
List<Person> people = GetPeopleList();
JavaScriptSerializer json = new JavaScriptSerializer();
You need to use the JavaScriptSerializer class to serialize only the Name property of each item in the people list. Which code segment should you use?
A. JsonValue = json.Serialize(people.Select(p => p.Name));
B.

C. JsonValue = json.Serialize(people.SelectMany( p =>Name.AsEnumerable()));
D.

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