You know guilt is a very powerful emotion. It can bring someone to ultimate conclusions or simply toy with their heads. Not only is guilt powerful, so is depression. Now I personally don't like the word but it's a word that can be used in that perspective. Depression is bottom level of sadness that takes some wonders to overcome. Though with doing the right thing and accomplishing your goals, it's like the word doesn't even exist. Though failure is another one that is powerful. Now Gandhi (whoever he is) must have felt like a total waste to everything. He must have felt like people were talking behind his back. Which I'm sure they were but Gandhi overthought it I'm sure. :)
The best explanation why the area between Spain and Gaul was not part of the Roman empire until that later period was a culmination from both undesireability and difficulty in accessing this region due to its mountaineous nature. So I would wager the answer being both C and D - undesireability and difficulty in access.
