Professor Nikodemos Has Found a High Positive Correlation Between the Number

Multiple Choice

Professor Nikodemos has found a high positive correlation between the number of his psychology lectures that students attend during the semester and their grades in psychology.This means that attending more of Nikodemos's classes

A) causes better grades in psychology.
B) causes worse grades in psychology.
C) is predictive of better grades in psychology.
D) is predictive of worse grades in psychology.