JAVA/Sun Exam Questions

Which of the following commands did Wally use to configure file namecompletion?

Wally is using a Korn shell. He uses the escape key followed by the backslash key for file name completion in this shell. Which of the following commands did Wally use to configure file name
completion?

A.
set filec

B.
set -o emacs

C.
set -o vi

D.
fc -l