Claire lost weight due to her social environment. Hope this helps!
The backpack is hanging amongst the shoulders of an individual. This pushes pressure down the spin resulting in pressure in the back and the hips altogether. The heavier the backpack the worse it is for the back(spine) and hips.
Hope this helps!
She's under pressure so she puts up with his behavior
I think your answer for this question is D . I may be wrong ... but I think it's D