下面if语句统计“成绩(mark)优秀的男生(gender)以及不及格的男生”的人数，正确的语句为()。A. if(gender == "男" or (mark = 90)): n + 1B. if(gender == "男" and mark = 90): n + 1C. if(gender == "男" and mark = 90): n + 1D. if(gender == "男" and (mark = 90)): n + 1

A. if(gender == "男" or (mark < 60 or mark >= 90)): n + 1

B. if(gender == "男" and mark < 60 or mark >= 90): n + 1

C. if(gender == "男" and mark < 60 and mark >= 90): n + 1

D. if(gender == "男" and (mark < 60 or mark >= 90)): n + 1