Which line from extremely loud and incredibly close reveals a sentimental tone?

Which line from extremely loud and incredibly close reveals a sentimental tone? a) i couldn’t sleep, not after hours, and it made my boots lighter to be around his things, and to touch stuff that he had touched, and to make the hangers hang a little straighter, even though i knew it didn’t matter. b) his tuxedo was over the chair he used to sit on when he tied his shoes, and i thought, weird. why wasn’t it hung up with his suits? c) had he come from a fancy party the night before he died? but then why would he have taken off his tuxedo without hanging it up? maybe it needed to be cleaned? but i didn’t remember a fancy party. d) if i hadn’t noticed anything else weird, i wouldn’t have thought about the tuxedo again. but i started noticing a lot.