True or false: a class that implements an interface may only implement a few of that interface's method declarations

False

Explanation:

Whenever a class implements an interface, it has to define all the functions which are declared in the interface because in the interfaces, methods are only declared and not defined, so, if a method is left undefined, it leads to compilation error, that is why, all methods of an interface has to be defined by the class which is implemented that method.

the answer is c