I'd like to buy a house---modern,comfortable,and___in a quiet neighborhood.

B
above all 最重要的是

我想买一幢现代舒适尤其是在安静社区内的房子

in all 一共
after all 归根到底，毕竟
at all （否定句）丝毫，根本，（除否定句）究竟

B above all 最重要, 首先

B above all;