You are implementing an ASP.NET application. You add the following code segment.
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?()
A.var secretPeople = (from p in allPeople from u in secretUsers where p.UserId == u select p).Distinct(); return allPeople.Except(secretPeople);
B.return from p in allPeople from u in secretUsers where p.UserId != u select p;
C.return (from p in allPeople from u in secretUsers where p.UserId != u select p).Distinct();
D.List people = new List( from p in allPeople from u in secretUsers where p.UserId != u select p); return people.Distinct();