Jane is conducting a study on the effects of meditation on stress with highly anxious and nonanxious participants. She finds that overall, highly anxious participants reported greater levels of stress and that, overall, participants in the meditation group reported lower levels of stress than the group that did not practice meditation. She also found that the impact of meditation on lowering stress was particularly strong for participants who were highly anxious. Which of the following is a correct description of the results?a. two main effects and an interaction
b. two main effects and no interaction
c. one main effect and an interaction
d. no main effects and an interaction