If the amount of time a student spent studying was positively correlated with grades achieved， what would we expect to see if someone had low grades？

If the amount of time a student spent studying was positively correlated with grades achieved， what would we expect to see if someone had low grades？
A.The student did not spend a lot of time studying
B.The student spent a lot of time studying
C.A strong negative correlation
D.There is not enough information to determine correlation
正确答案：The student did not spend a lot of time studying