you ArE AttEnDing A mEEting on miCrosoFt winDows mEEting spACE. At thE sAmE timE, you AttEmpt to join A sEConD mEEting Also hostED on winDows mEEting spACE. thE DiAlog Box thAt Allows you to join thE sEConD mEEting FAils to opEn. you nEED to join thE sEConD mEEting.
whAt shoulD you Do?（）

A . A
B . B
C . C
D . D