In a study, the researcher tries to use sugar intake to predict an individual's weight. However, when the researcher adds another variable (exercise) into the study, he finds out that the effect of sugar intake on weight has increased. Which of the following statement can be true?

Group of answer choices, Select the best answer

Exercise is a suppressor.

Exercise is a moderator.

There is an interaction effect between sugar intake and exercise.

All the statements are correct.

All the statements are incorrect.