Which of the Following Statements Is False

Which of the following statements is false

A) C# 6's null-conditional operator (
B) A nullable type is a value type that also can be null.
C) You specify a nullable type by following a value type's name with a question mark (
D) The GetValueOrDefault method checks whether a nullable-type variable contains a value. If so, the method returns that value; otherwise, it returns the value type's default value.