How does the role of Marquis de Lafayette in the American Revolution compare to that of Baron von Steuben?

a. Both fought against the Continental Army with great success, especially at Valley Forge
b. Marquis de Lafayette mostly trained troops and provided supplies, while Baron von Steuben led several notable raids against the British
c. Marquis de Lafayette fought for the Imperial Army, while Baron von Steuben fought for the Continental Army
d. Both men were useful in the war effort and contributed, although most believe that von Steuben was not truly a baron