C won't be filing BK. They are in a great position now that they eliminated a ridiculous amount of jobs, thereby reducing their Ls which in turn will increase the COH thus strengthening their BS, SOCF, and ultimately reducing their D/E.
Also, hopefully you've learned from prior lessons that the correct thing to do with C is locate and lock-in to low prices that exist on their preferreds.
By the way, you are not going to get $1, you will get much more than that in value. Put your TRUST back in
WASHINGTON MUTUAL!
Class dismissed.
Best of Luck!