The program recommends a constant intensity for 3 visits, increasing intensity over 3 visits, and then decreasing intensity for 3 visits before restarting the pattern. which sets of values could be the intensities of amber's exercise during the fourth, fifth, and sixth visits? check all that apply. 63%, 63%, 63% 66%, 69%, 72% 66%, 62%, 58% 67%, 67%, 67% 63%, 65%, 67% 67%, 72%, 77%