please provide explanation for the answer. The question is in the image below.

68. A double-blind experiment is designed to test the effectiveness of a balance bracelet for those with poor balance. When treated with the balance bracelet, the participants seem to show improvement. Researchers calculate that there is a 0.04 probability that the bracelet wearing group would indicate improvement even if the bracelet has no body effect (i.e., placebo effect). What is the inferential conclusion about the effectiveness of the balance bracelet? The people in the group of 0.04 did not have balance problems. The bracelet is not reliable because there is a 40% probability it is placebo effect. The balance bracelet is ineffective because of the probability measurement by the researchers. The bracelet is effective because the probability of showing improvement from a bracelet placebo effect is so small