For what value of x is △ABC ~ △DEF? Ben made a sundial in his backyard by placing a stick with height 6 in. straight into the ground, and marking the hours in the grass. To test it, he checks the time each day when the sun makes an angle of 30° or 60° with the ground. Select all the possible lengths of the shadow when Ben checks the sundial.

A. 12 in.
B. 23√ in.
C. 8 in.
D. 63√ in.
E. 22√ in