Parents of some of the children in a particular class have claimed tha

Parents of some of the children in a particular class have claimed that the teacher is not ‎objective and favors his male students with higher grades. But the record shown that ‎‎92% of the female students received a passing grade in this teacher’s class. This record ‎demonstrates that the teacher has not discriminated against women when assigning ‎grades. ‎

The argument above is flawed in that it ignored the possibility that

A. a large number of the teacher’s student were in his class the previous year.‎

B. many teachers find it difffucult to be objective when assigning grades to male and ‎female students.‎

C. the evidence shows that more than 92% of the female students should have received ‎a passing grade. ‎

D. the majority of tests written by female students and that have been rechecked by ‎another teacher were given a higher grade by the second teacher. ‎

E. the teacher is biased against female students in the case of only some of the subjects ‎he teaches.‎