D. The man showed us where to sit in the brown coat.
The sentence would make more sense if "in the brown coat" was placed closer to the subject (the man). Ex: the man in the brown coat showed us where to sit.
I went to the beach to stroll around. The view of the beach was so pretty. Chris and I were happy we came. But then we got really tired from walking around. "We should come again!" Chris says. "lets go home and play interesting games." I say, Chris nods. Chris's birthday was around the corner. So i decided to get him and early Birthday present.