A variable that is declared protected:

A variable that is declared protected:
A. Is visible only in the subclasses (and not in the class it is declared in)
B. Is visible only in the class it is declared in
C. Is visible to all classes, but modifiable only in the class where it is declared
D. Is visible in the class it is declared in, and all of its sub-classes

Chọn D là đáp án đúng