the gate that guard the entrances to the professions,to scie

英语翻译
The cross sets out the entrances to the floors of
the two towers holding the roomsand also the corridors connecting the various refreshment services and facilities:bar,brasserie,restaurant,banquet rooms
and meeting rooms are easy to identity and reach through the spacious lobby,which extends seamlessly into
the towers through two wide gaps.

The one of the new entrances in only ___ from out neighbourhood
A five minutes walk
B five minutes' walk
C five mintue walk
D five minutes's walk

以上四个选项那个是正确答案,顺便详细的给我原因,谢谢!