If on a tuesday a person sent a package via fedex for overnight delivery and the package was not delivered until friday because on tuesday and wednesday nights all airports were shut down due to a federal government shutdown (closing down air traffic control towers), then fedex could probably successfully argue their failure to perform as promised was excused because of commercial impracticability since, although fedex could have delivered packages overnight by driving them, the fact that all aircraft were grounded was beyond the scope of what could have been reasonably anticipated (or expected). true false question 4 3 pts one example of a situation where the duty to perform the terms of a contract cannot legally be assigned to an unrelated third party is when the terms of the contract call for personal services of a specific individual (for instance a professional basketball player cannot agree to play basketball and then hire another person to play for him/her instead). true false