Hey there. Gilbert du Motier, Marquis de Lafayette, was certainly not known for your choices C. and D. (Lexington and Concord), neither B. (Bunker Hill).
However, Lafayette is known for assisting GEN. George Washington and ADM. Francois de Grasse at the Battle of Yorktown (B.). At the Battle of Yorktown, these brave leaders and their men surrounded British General, Sir Cornwallis, and that marked the end of the American Revolutionary War.