GWD4-Q17 求助

Although the restaurant company has recently added many new restaurants across the country and its sales have increased dramatically, its sales at restaurants open for more than a year have declined.

A.    the restaurant company has recently added many new restaurants across the country and its sales have increased dramatically, its

B.    the restaurant company has recently added many new restaurants across the country and its sales increased dramatically, its

C.    many new restaurants have recently been opened across the country and its sales increased dramatically, the restaurant company’s

D.    having recently added many new restaurants across the country and with its sales increasing dramatically, the restaurant company’s

E.     recently adding many new restaurants across the country and having its sales increase dramatically, the restaurant company’s

这题为何选A呢，我当时在AD之间纠结，后来选的是D

A 对称结构很明显嘛

has added and have increased

D中with its sales increasing ，官方不认同这样的说法

而且having added，为什么要having呢？

谢谢啊，看来我要把OG再看再看