Which one of the following statements about correlation is correct?

Group of answer choices

One of the possible reasons for SAT score and money spent on tutoring being correlated is that SAT score and money spent on tutoring are both caused by a third variable.

If SAT score and money spent on tutoring are significantly correlated, then SAT score must cause money spent on tutoring.

If SAT score and money spent on tutoring are significantly correlated, then money spent on tutoring must cause SAT score.

If SAT score and money spent on tutoring are significantly positively correlated, then as values on SAT score increase, values on money spent on tutoring must decrease.