The process where the programmer steps through each of the program's statements one by one is called
.

Answer:
so a program can reference it; however, it does not necessarily need an event handler
Explanation:
The correct answer is option D.
i.e. graphic user interface allows users to control software operations by clicking and pointing with a mouse.
GUI is a type of interface that allows the user to interact through computer graphics.
B) each person gets to contribute in their own unique way
Answer: 8:58.5204 o'clock a.m
:)