C, He challenged Dolokhov to a duel and seriously wounded him.
The French wanted the debt that America owed them back. However, since the previous government (the one that lent them the money) was overthrown, the president said that the debt didn't count anymore. Because of this, French sailors kidnapped and attacked American sailors. This lead to an undeclared, cold war called the Quasi Wars.
The cotton economy, due to the new cotton gin. ( don't know if right, but it did free soaves)
D all of the above is correct