After the selection of a "documentary golden lens award", factory A's "Yellow River" won the best documentary award, factory B's "Wuyishan" won the best photography award, and factory C's "South China Sea" won the best music award. The three factory directors were invited to introduce their experience to the school. In the lounge, the director of the factory A said, "It's really interesting that the last names of us are the first word of the film title. " "However, each of us has a different last name from the first word of the film we made. ” At this time, a director whose last name is Wu added. “That ’s true!” Factory A' director agreed. If the above statement is true, which of the following is true? ["The last name of Factory A's director is Nan, Factory B's is Wu, and Factory C's is Huang.", "The last name of Factory A's director is Huang, Factory B's is Wu, and Factory C's is Nan.", "The last name of Factory A's director is Nan, Factory B's is Huang, and Factory C's is Wu.", "The last name of Factory A's director is Wu, Factory B's is Huang, and Factory C's is Nan."]