1. Why should the attributes of a class be private? 2. Can a Time class definition that includes both of the following constructors: Time( int h = 0, int m = 0, int s = 0); Time(); be used to default construct a time Time Object? If not, explain why. 3. Write a statement that creates a pointer to a Circle object and instantiates the Circle object being pointed to 4.. Use dynamic memory and initialize the object to the value