With the cards as shown in the diagram Plan C is the only one that works.

Nancy manages to contact Andy, telling him to use "Plan C".

We're part of Plan C now, whether anyone wanted us to be or not.

Scale of Plan C : 1 inch to 2,000 yards.

Under Plan C, 400 people would die.

I guess there's a Plan C for you.

So she went to Plan C, or maybe D, she's lost track.

"We've just been handed Plan C," I told the others.

In the end, it turns out that the inhabitants have set everything up according to "Plan C" - Comedy.