Answer:
C) The all-expenses paid vacation may be considered a bribe under the U.S. FCPA.
Explanation:
If Waldo works for an American company, what he did is illegal. The Foreign Corrupt Practices Act prohibits US businesses and individuals to pay bribes to foreign officials. It doesn't matter if Waldo was successful in getting an unfair business advantage or not, the fact that he paid for the trip is a crime.