all of them except the last one is correct, the last one is C). -8, 5, 6, |-7|, 8, because it says <em>least </em> to <em>greatest,</em> the one you picked wasn't even put in greatest to least, but I think where you went wrong is the absolute value of -7, the absolute value of a number is shown with | ? |.
I hope you understand your mistake and won't make it again :)