Create a C# program for 2022 version

Task 1: Grade Calculator Program Using C# Console Application, write a program that perform the following tasks: a. Ask user to input marks of 4 subjects (Maths, Physics, Chemistry and Computer Science) out of a maximum of 100 b. Use a function to calculate the average of the 4 marks and return it c. Use a function to find out the grade of the student using the average marks following the criteria listed below • Marks >= 80 – Grade A • Marks >=70 and < 80 – Grade B • Marks >=60 and <70 – Grade C • Marks>=50 and <60 – Grade D • Marks <50 – Grade F d. Using a switch statement, print remarks listed below based on the grade • Grade A – ‘Excellent! Your grade is A’ • Grade B – ‘Good! Your grade is B’ • Grade C – ‘Satisfactory. Your grade is C’ • Grade D – ‘Pass. Your grade is D’ • Grade F – ‘Fail. Your grade is F’ e. Make sure you take a screenshot of the code of your program as well as your program output. Task 2: Sum of multiples of 3 and 5 from 1 to 100 Using C# Console Application, write a program that will perform the following tasks: a. Calculate and display the sum of all multiples of 3 and 5 from 1 to 100(both inclusive) b. Also include a pseudocode of the program For example, if we list all the numbers between 1 and 10 that are multiples of 3 or 5, we get 3, 5, 6, 9 and 10. The sum of these multiples is 33. Task 3: Array manipulation (10 marks) Using C# Console Application, write a program implementing a loop that will prompt the user to enter 10 numbers and store them in an array. Modify the values of the array to the value divided by the index of the array plus one (index +1) and print the new values. For example, if the user enters 2,4,6,8,10,12,14,16,18,20 and the new values of the array will be 2,2,2,2,2,2,2,2,2,2. Task 4: Factors of a number Using C# Console Application, write a program that will accept a number and display the all the factors of the number (all the numbers that can evenly divide a number) For example, the factors of 10 are 1,2,5 and 10.