Given only to those who finish the challenging course, the t-shirt is a big reason why so many of the 55,000 run the race. what is the best way to paraphrase sentence (6)? a) runners must finish the race to receive a t-shirt. b) all 55,000 runners receive a t-shirt for participating. c) often the spectators are unaware of how important the t-shirts are to the runners. d) many people look forward to receiving a t-shirt, since it's only given to runners who finish.