Under the doctrine of commercial impracticability, which situation would not excuse the seller’s performance?

Question by Lovejit: Under the doctrine of commercial impracticability, which situation would not excuse the seller’s performance?
a) The seller forgot to include the cost of freight in a C&F contract.
b) The seller’s source of supply is no longer available because of a governmental embargo prohibiting an export from another country.
c) The seller cannot deliver because severe flooding wiped out three-fourths of the state’s produce.
d) The seller’s workforce is out on an unexpected strike.

Best answer:

Answer by jwishz
b) government embargo

What do you think? Answer below!