Of the following, which is NOT a cultural aspect of doing business in Korea? a. Younger brothers and sisters are not allowed to use the names of their older siblings. b. Business card etiquette is the most important aspect of closing the deal. c. "Yangban" refers to the noble class. d. The number 1 is good, whereas the number 4 signifies death. e. Children are not supposed to say their parents’ names, even when used with a title.
