er. 2. Please create a python program that will perform ask an instructor to input grades from a recent test. The program should display to the user a sentinel value (type "q" to quit). The program should then let the user enter scores from 0 to 100. The output should include the following: (35 points) a. Average scores for all the students b. Display back to the user how many grades they entered. C. Determine how many students got an A, B, C, D or F i. 100-91 = A ii. 90-81 =B iii. 80-71 = C iv. 70 = 60 =D V.