Jenna wants to make a park bench as part of her family's miniature railroad train display. If the display is built to scale where 3 cm = 1 ft, and Jenna is modeling her bench after a bench with a length of 5 ft, what will the length of Jenna's model be?
A.
8 cm
B.
2 cm
C.
36 cm
D.
15 cm
your answer is