A liquid crystal display (LCD) functions by exciting organic compounds with electric current to produce bright and sharp images. 

____ is the distribution of elements.

A. Unity B. Balance C. Contrast D. Rhythm

What is the printout of the following code?

``` #include using namespace std; class C { public: virtual string toString() { return "C"; } }; class B: public C { string toString() { return "B"; } }; class A: public B { string toString() { return "A"; } }; void displayObject(C p) { cout << p.toString(); } int main() { displayObject(A()); displayObject(B()); displayObject(C()); return 0; } ``` a. BBB b. CCC c. ABC d. CBA e. AAA