1. Fix the below program that uses a function show_letter_grade to display a user's letter grade. 2. The user is prompted to enter their numeric grade in the function. # Activity 2.7 # This program demonstrates keyword arguments. def show_letter_grade(): num_grade = int(input("Enter the numeric letter grade: ")) if (num grade >= 90): print('Grade is an A') elif(): # Fix me print('Grade is a B') elif(): # Fix me print('Grade is a C') elif() # Fix me print('Grade is a D') else: print('Grade is an F') print (show_letter_grade) # Call the main function. main()