At the start of the week, you could complete 12 push-ups. By the end of the week, you could complete 17 push-ups. Which proportion could you use to find the percent increase in the number of push-ups you can complete? ( please pick one of these answers) A) 5/17=n100 B) 12/5=n100 C) 12/17=n100 D) 5/12=n100