Complete the getGrade(score) function in the editor. It has one parameter: an integer, score, denoting the number of points Julia earned on an exam. It must return the letter corresponding to her grade according to the following rules:
if 25 < score <= 30, then grade = A
if 20 < score <= 25, then grade = B
if 15 < score <= 20, then grade = C
if 10 < score <= 15, then grade = D
if 5 < score <= 10, then grade = E
if 0 < score <= 5, then grade = F
0 <= score <= 30
11
D