What word do you use to start off a compoud-complex sentence?

You have to use AAAWWUBBIS. After, although, as, when while. until, before, because, if,
since.

Who,Whose,Whom,Which,What,That,Whoever,Whomever,Whichever,Whatever,After,Although,As,As If,AsMuch As,Because Before, Now, If, Since,In, Order That, Provided, So,That,Than,Though,Till,Unless,Until,When,Whenever,Whether,Where,Wherever,While

Your answer should be “b”