What is a function? What is the difference between the calling function and the called function? What is the scope of a variable? Why should you avoid using global variables? There are two components to this week’s homework.This assignment uses functions and conditional structures.To complete this activity, please refer to Programming Problems 5.2, Page 202, #1.You will be writing a program using an array. To complete this activity, please refer to Programming Problems 6.2, Page 249, #1.