I think you could have used group 4 application here as well. The stimulus says "there is no individual freedom without social integrity". "No" is group 4, negate necessary and "without" is group 4, negate sufficient. So that would be:

/social integrity -> / individual freedom

Contrapositive: individual freedom -> social integrity

The contrapositive using that logic technique gives you the same thing J.Y had.

I am doing pretty well with the LR lessons but I notice that I often go over the target time for each question. Earlier in the LR section it was mentioned not to focus on time too much yet, but I'm unsure at one point I should be start focusing on my speed. Also, what should I do to improve my speed when it becomes a priority?