The correct statement$(s)$ about the following sugars $(X)$ and $(Y)$ is:

• A
  Both $(X)$ and $(Y)$ are non-reducing sugars.
• B
  $(X)$ is a non-reducing sugar and $(Y)$ is a reducing sugar.
• C
  $(X)$ is a reducing sugar and $(Y)$ is a non-reducing sugar.
• D
  Both $(X)$ and $(Y)$ are reducing sugars.