George signs a three-year lease on a cabin adjacent to the Superior National Forest to take people on hunting and fishing expeditions into the forest. A few weeks after he signs this new lease, the Secretary of the Interior unexpectedly announces that she is banning hunting and fishing in the Superior National Forest. As a result, George's business is effectively over. Can George do anything to get out of his lease? O No, because George's land was always subject to this potential government ban. O No, because he cannot unilaterally terminate the contract. O Yes, on the grounds of commercial frustration. Yes, on the grounds that his contract is now illegal.