The program design that involves breaking an algorithm into to functions is called $\_\_\_\_\_\_\_\_\_\_\_\_.$

Flag question: Question $2$

Question $21$ pts

$\_\_\_\_\_\_\_\_\_\_\_\_\_$ is the flowchart used to represent the relationships between functions in a program.

Flag question: Question $3$

Question $31$ pts

A variable defined within a function is $\_\_\_\_\_\_\_$ to the function.

Flag question: Question $4$

Question $41$ pts

$\_\_\_\_\_$ is the part of a program in which a variable is accessed.