If the universal set is U = { 1, 2, ..., 9, 10 } andA= { 1, 4, 7, 10 } andB= { 1, 2, 3, 4, 5 } and C= { 2, 4, 6, 8 } then which of the following represents the setU\ (AB)?

I need a detailed write up or explanation.

Thanks