It is a good practice to give each layer a unique name so you can identify it more easily.

Which of the following statements is true about radio buttons?

A) Each radio button in a group must have the same name. B) Each radio button is a group must have the same value. C) Each radio button in a group must have a unique name. D) It does not matter if the names or values in a radio button group are the same or different.

Assuming that ptr is a pointer to a class data member of class Check and obj is a pointer to a Check object, which of the following statements would be used to output that data member?

a. cout << obj.*ptr; b. cout << ( *obj ).*ptr; c. cout << obj->*ptr(); d. cout << ( *obj )->*ptr;