A cultural historian could legitimately use the information in the passage above in establishing that a painting of that era done on A. canvas sold by a European retailer and mounted on a stretcher of American wood is probably an American painting B. canvas sold by an American retailer and mounted on a stretcher of American wood is probably an American painting C. canvas sold by an American retailer and not mounted on a stretcher is probably not an American painting D. unmarked canvas mounted on a stretcher of American wood is probably an American painting E. unmarked canvas that is not mounted on a stretcher is probably not an American painting