You are implementing an ASP.NET application. You add the following code segment. public List<Person> GetNonSecretUsers() { string[] secretUsers = {"@secretUser", "@admin", "@root"}; List<Person>…

You are implementing an ASP.NET application. You add the following code segment. public List<Person> GetNonSecretUsers() { string[] secretUsers = {"@secretUser", "@admin", "@root"}; List<Person> allpeople = GetAllPeople(); ... } You need to add code to return a list of all Person objects except those with a UserId that is contained in the secretUsers list. The resulting list must not contain duplicates. Which code segment should you use?