1. What is the magnitude (size) of -8.5?_______________________O A. 8.5, because |-8.5| = 8.5O B. -8.5, because |-8.5| = - 8.5O C. 8, because |-8.5| = 8O D. -8.5, because |-8.5| = 8.52. What number is the opposite of 13/5?_____________________O A. - 5/13O B. 5/13O C. - 13/5O D. 3/5