The conference was organized for all of the ________ in the city. A.mathematic teachers B.mathematics‘s teachers C.mathematics’ teachers D.mathematics teachers (答案。学科作定语,运用逻辑思考问题,其他答案都讲不通。)
所有格是做什么的?老师属于数学的?
此外,A mathematic(al) man is clever, but is not a mathematics teacher.