A string function that returns a boolean value is

A)

empty()

B)

find()

C)

at()

D) compare()

Function members of a class gain access to the calling object's members by

A) a pointer to the calling object that is implicitly provided by the compiler. The name if this pointer is this. The members are prefixed implicitly by this-> as in this->membername

B)

a variable called self that is an alias for the calling object. This self is used to access the members of the object as in self.membername

C)

there is no particular mechanism, the variables just know what the calling object is and automatically refer to the calling object

D)None of the above

Which statement invokes the constructor for class Complex?

		A)Complex a;
		B)Complex a, b(6.8, 9.7);
	C)	All listed
		D)Complex b(6.8, 9.7);