there are more than three thousand students in my school and most of ___come from the country.A.that B.which C.whom D.them 答案选d为什么,我觉得c也可以啊,请指教

Question

there are more than three thousand students in my school and most of ___come from the country.
A.that B.which C.whom D.them 答案选d为什么,我觉得c也可以啊,请指教

Answer 1

them 是代词,指代students in my school,后面的and表示是要补充说明这些student的状况
而whom构成的会是从句