Solution

4 men and 4 women to be seated alternatively.

We can have men in the odd places and women in the even places: M W M W M W M W

Arrangements for Men = 4 * 3 * 2 * 1 = 24

Arrangements for Women = 4 * 3 * 2 * 1 = 24

Total arrangements for the above = 24 * 24 = 576

Similarly we can have 576 arrangements for women in the odd places and men in the even places: W M W M W M W M


Therefore total arrangements = 576 + 576 = 1152

Option B