50 POINTS FOR WHOEVER ANSWERS

William and Katherine both earned a B on the same science test, but William actually ranked ahead of Katherine on the test.

William most likely ranked higher because the teacher used a

A) letter-grading system based on a range of numbers.
B) number-grading system based on a range of letters.
C) number-grading system based on a range of percentages.
D) letter-grading system based on a range of percentages.