The Payoff Matrix Below Shows the Payoffs (In Millions of Dollars)for

Multiple Choice

The payoff matrix below shows the payoffs (in millions of dollars) for two firms, A and B, for two different strategies, investing in new capital or not investing in new capital.  
An industry spy from firm A comes to firm B and offers to pay B in exchange for B's certain and enforceable promise to not invest. What is the most that firm A will be willing to pay B to not invest?

A) $30 million
B) $20 million
C) $35 million
D) $50 million