9. Ben drinks tea at a relatively quick rate. He drinks 1/2 liter of tea every 2/3 of an
hour. How much tea does Ben drink per hour?
A. 1 and 1/3 of an hour per liter
B. 3/4 of a liter per hour
C. 1 and 1/3 liter per hour
D. 3/4 of an hour per liter