Access controls for members are Private which mean that$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

A$.$

visible in the class and in subclasses, but not clients.

B$.$

visible in subclasses and clients.

C$.$

visible only in the class and friends and disallows subclasses from being subtypes.

D$.$

Not visible in the class and in subclasses, but not clients.