Assume that there are many students in Computational Thinking with Data Science class. Below is just a sample of the academic records of some students (grades in 100 scale): Name Midterm 1 (20%) Midterm 2 (20%) Midterm 3 (20%) Final Project (40%) Bob 90 85 95 90 Anna 95 95 95 95 Tom 80 90 100 100 Mary 100 100 90 95 H Laura 70 Ted 50 Mike 80 Letter grade conversion: 80 60 60 90 60 70 100 50 75 Guaranteed grade 2.90 A B 80 - 89 70 79 60 69 60 C D F All the questions below must be answered using Python script (Recommendation using basic Python, not necessary to use advanced packages like Numpy or Pandas) a) Decide a data structure to represent the class with students and grades information with assumption that the class list is long enough. Read the provided osv file containing these information and store into a variable having the defined data structure. (10 points) b) Calculate the final grade of cach student and print out the final grades of all students (5 points) c) Develop a function to convert numeric grade to letter grade. Utilize the developed function to convert numeric grades of students to letter grades and print out the final letter grades of all students. (10 points) d) Find the student with highest score, then print that student name and the highest score (5 points) Note: do not list them with what you see using your eyes. Please you Python script to find out the students and show them to the screen. e) List all students whose final letter grade is A. (5 points) Note: do not list them with what you see using your eyes. Please you Python script to find out the students and show them to the screen Liststudents whose final and points 80 - 89 B 70 - 79 60 - 69