Suppose that X is a set of some real numbers. From which of the following statements does not deduce the other statements?

• A. Between any two numbers in X, there is at least one number in X.
• B. Between any two numbers in X, there are least two numbers in X.
• C. Between any two numbers in X, there are infinitely many numbers in X.
• D. If X contains at least two numbers then X contains infinitely many numbers.