Why did the death of Mr. Dooley become a piece of sad news to Father?

A、Mr.Dooleywasawealthyandrespectfulneighbor.;
B、Mr.DooleyoftencametovisitandhadinformedconversationwithFather.;
C、Mr.DooleywasafriendofFathereversincechildhood.;
D、Mr.Dooleywasarespectedcommunityleader.