試題詳解

40. According to this article, which of the following statements is true about the hat rule? 
(A)It is treated as a custom for men to remove their hats when entering a church.
(B)All people are required to take off hats whenever a U.S. national anthem is played.
(C)Men need to remove theirhats in public places.
(D)Women need to remove their hats at luncheons.