Which of the Following Quotes Shows Cheating on a Cartel

Which of the following quotes shows cheating on a cartel in the widget industry?

A) "I am producing extra widgets, even though it costs me short-run profit, to stop Wally's Widgets from expanding into my market."
B) "I am producing more widgets than Wally and I agreed to in our talk last week."
C) "If only Wally and I could agree on a higher price, we could make more profit."
D) "I have been spending extra on research and development of my new two-way widget."
E) None of the above