The mean exam score for 49 male high school students is 22.1 and the standard deviation is 4.5. The mean exam score for 56 female high school students is 20.6 and the standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? What is the claim? OA. Male and female high school students have different exam scores. OB. Male high school students have greater exam scores than female students. OC. Male and female high school students have equal exam scores. OD. Male high school students have lower exam scores than female students.