Which revision correctly combines these sentences? our training for the race paid off. we did not even have any muscle soreness the day after. a) our training for the race paid off we did not even have any muscle soreness the day after. b) our training for the race paid off, we did not even have any muscle soreness the day after. c) our training for the race paid off; we did not even have any muscle soreness the day after. d) our training for the race paid off so we did not even have any muscle soreness the day after.