What are the two choices for focal distance on a CTS-500?

What are the two choices for focal distance on a CTS-500? (Choose two)

A.
3.5 ft (1.06 m)

B.
4 ft (1.22 m)

C.
6 ft (1.83 m)

D.
8 ft (2.44 m)

E.
8.5 ft (2.59 m)