—I thought Stephanie and Lee were getting married in June.

—No, that’s ________ her cousin’s wedding is.

A．where

B．when

C．why

D．how

税务机关应当为纳税人、扣缴义务人的情况保密，但纳税人、郊缴义务人的 ______ 行为不属于保密范围。