Two married couples, along with four boys, have bought eight seats in a row for a hockey game. Each person is to draw a ticket randomly before the...

Two married couples, along with four boys, have bought eight seats in a row for ahockey game. Each person is to draw a ticket randomly before the game. Find the probabilities(a) each husband is to sit to the left of his wife.(6!/8!)(b) all the males are to sit together and all the females are to sit together. (2!6!2!/8!)(c) the boys are not to sit all together. (1-5!4!/8!)

The parentheses in each questions are the answer, please provide explanation on how to get that answer.