write a program that accept marks in 4 subjects, the program then compute and output total, average, and grade and remark based on the following grading system. a) Use if else b) Use switch case Marks Grade Remark 70-100 A Excellent 60-69 B Good 50-59 C Satisfactory 40-49 D Pass 0-39 F Fail

Here are two versions of a program that accepts marks in 4 subjects, computes total, average, and assigns grades and remarks based on the specified grading system. a) Using If-Else `python Function to calculate total, average, grade, and remark using if-else def calculate_grade_if_else(marks): total = sum(marks) average = total / len(marks) if average >= 70: grade = 'A' remark = 'Excellent' elif average >= 60: grade = 'B' remark = 'Good' elif average >= 50: grade = 'C' remark = 'Satisfactory' elif average >= 40: grade = 'D' remark = 'Pass' else: grade = 'F' remark = 'Fail' return total, average, grade, remark Input marks marks = [float(input(f"Enter marks for subject i+1: ")) for i in range(4)] total, average, grade, remark = calculate_grade_if_else(marks) Output results print(f"Total: total, Average: average, Grade: grade, Remark: remark") ` b) Using Switch Case (Python does not have a built-in switch case, but we can simulate it using a dictionary) `python Function to calculate total, average, grade, and remark using a simulated switch case def calculate_grade_switch_case(marks): total = sum(marks) average = total / len(marks) Simulating switch case using a dictionary switch = (average >= 70): ('A', 'Excellent'), (average >= 60): ('B', 'Good'), (average >= 50): ('C', 'Satisfactory'), (average >= 40): ('D', 'Pass'), grade, remark = next((value for key, value in switch.items() if key), ('F', 'Fail')) return total, average, grade, remark Input marks marks = [float(input(f"Enter marks for subject i+1: ")) for i in range(4)] total, average, grade, remark = calculate_grade_switch_case(marks) Output results print(f"Total: total, Average: average, Grade: grade, Remark: remark") ` Summary Both programs calculate the total and average of marks entered for four subjects and determine the grade and remark based on the specified grading system using different control structures.