angle A = x + 10
angle B = x + 5
angle C = 3x - 35
side AB is opposite to C
side BC is opposite to A
side AC is opposite to B
the biggest angle is C, then the biggest side is AB
A is bigger than B, so BC is bigger than AC
so from biggest to smalles: AB, BC, AC
sot he answer is the third option, option C
AB, BC, AC