Answer: d. The contract is void, so no US court will enforce it.
Step-by-step explanation:
Sanctions imposed on other countries bear the full weight of the law in the U.S. unless the Judiciary dissents.
The sanctions placed on Venezuela makes importing rum from Venezuela a illegal action. The contract between these two parties is therefore void because they should not be engaging in illegal actions and no U.S. court would enforce it because that would be enforcing an illegal action.