1. Letter grades (Use chained if) Write a program (LetterGrades. py) that allows a student to enter their score of quiz 1. The program will display their letter grade at Coquitlam College according to the table for lettergrades at the top of our course web page. Here are three test runs of your program: Enter your quiz mark (as 8 ) : 91 Your lettergrade is: A+ \ P RESTART: C: \Users \Rita\Google Dr: Enter your quiz mark (as 8): 78.5 Your lettergrade is: B+ RESTART: C: \Users\Rita\Google Dr: Enter your quiz mark (as t): 49.5 Your lettergrade is: F Submit LotterGrades.py