What is the BEST revision to make in sentence 33? A He and the Spirit of St. Louis made a 3-month tour of the United States, where he gave countless speeches and appeared in many parades, which was during the time of the tour. B He and the Spirit of St. Louis made a 3-month tour of the United States, and he gave countless speeches in many parades during this tour. C He and the Spirit of St. Louis made a 3-month tour of the United States , during which he gave countless speeches and appeared in many parades. D He and the Spirit of St. Louis made a 3-month tour, giving countless speeches and appearing in many parades while touring the United States.
