A Student's Class Average Can Be Computed by Dividing the Number

A student's class average can be computed by dividing the number of points they have earned by the number of points possible in the class. Assume the following variables have been declared as shown and given values elsewhere:
Int pointsEarned, pointsPossible;
Double classPercentage;
Which of the following statements will assign the correct percentage average to classPercentage? For example, if pointsEarned is 725 and pointsPossible is 1000, classPercentage should be assigned the value 72.5.

A) classPercentage = pointsEarned/pointsPossible * 100.0;
B) classPercentage = 100 * pointsEarned/pointsPossible;
C) classPercentage = (100.0 * pointsEarned) /pointsPossible;
D) classPercentage = (100.0 + pointsEarned) /pointsPossible;