转让[zhuǎnràng] means transfer. It’s located 位于[wèiyú] on a main street 中心大街that has large people-traffic 人流[rénliú]量大[liángdà]， it also has an established 稳定[wěndìng]clientele 客源[kèyuán]， with a floor space 面积[miànjī] of 400 square metres 平米[píngmǐ]。
The fee 费[fèi] is to be negotiated 面议[miànyì]. Now let’s examine our options.
A. The owner 主人[zhǔrén] wants to increase 增加[zēngjiā] customers。
B. doesn’t want to continue operating 经营[jīngyíng]
C. wants to enlarge 扩大[kuòdà] his floor space
or D. has decided on a transfer fee
So it’s clear the answer must be B.