Kristine is 5 1/2 feet tall. Her sister Colleen is 57 inched tall. Which of the following is true of their height?
A.kristine is exactly 8 inches taker than Colleen
B. Kristine is exactly 9 inches taller than Colleen
C.colleen is exactly 8 inches taker than Kristine.
D. Colleen is exactly 9 inches taller than Kristine.