eight family members: 5 grandchildren (3 brothers and 2 sisters) and their 3 grandparents are to be seated around a circular table. How many different seating arrangements are possible so that 2 sisters are seated between any two of the three brothers?  Choose the most appropriate option:
A) 120	B) 288	C) 1440	D) 2880	E) 8640
Answer: 288.
<result>B</result>
eight family members: 5 grandchildren (3 brothers and 2 sisters) and their 3 grandparents are to be seated around a circular table. How many different seating arrangements are possible so that 2 sisters are seated between any two of the three brothers?