ANSWER
B, C, A
EXPLANATION
We have the triangle given.
In a triangle, the length of each side and the angle opposite it are proportional. This means that the longer the side, the larger the angle opposite that side.
Let the angle opposite x be A.
Let the angle opposite 3 be B.
Let the angle opposite 8 be C.
We see that x is longer than 8 and 8 is longer than 3.
This means that for the angles:
A > C > B since x > 8 > 3
So, the order from least to greatest is:
B, C, A
