Joel's CD-Making Business Is Looking Shaky in March,and in October

Joel's CD-making business is looking shaky in March,and in October he transfers the title to his house to his wife for $1.Immediately thereafter,he files for bankruptcy.The transfer to his wife could be challenged by creditors as

A) a stay of proceedings.
B) a discharge.
C) a preference,provided that Joel's wife owes him money.
D) a transfer to a relative.
E) a preference even if Joel's wife does not owe him money.