I would say a because he ran too much but that would be just me I think he hurt his knee from running too much more exercise but probably just aggravate his condition I could be wrong but this is what I think
I believe that this would be deforestation because the trees' roots keep the soil in place whereas if they were gone the soil would be loose.
5 days in texas it might be depending on where you live but 5 days isolation
Yes , it is ones pesonality traits.
I think it would be E because it is unsafe to have your contact information public