Place the digits 1,2,3,6,7, and 8 in the boxes below to obtain A.) the greatest possible sum;
B.) the smallest possible sum

I would say it’s A. Sorry If I’m wrong I can’t see the picture. But I’m pretty sure it’s a since u place the digits 1234567 and 8 in the given boxes. In such a way that makes 9 in all therefore boxes will fill as- 321+678=999. So A mark brainliest if I’m right pls.