Suppose We Have Data for 1000 Students for a Period

Multiple Choice

Suppose we have data for 1000 students for a period of one year.The data show that those students who spend more hours studying have a higher grade point average (GPA) .We can say that

A) if hours of study time increase,then GPA will automatically increase.
B) having a higher GPA leads students to spend more time studying.
C) there is a causal relationship between hours of study time and GPA.
D) more hours spent studying leads to a higher GPA.
E) there is a positive correlation between hours of study time and GPA.