Math world solving problem

QUESTION:
Three married couples enter a room. The woman sit at a round table. The husbands sit so that
A: The women and men alternate around the table
B: no husband or wife is beside each other
In order that condition A and B be satisfied, there is only one way to show the arrangement. What is it?
How many ways are possible if 4 couples enter the room and condition A and B must be satisfied?

[SHOW WORK if POSSIBLE] THANK YOU!