[SC][Parallel] HSPA posts

[HSPA]

In response to losing a significant part of its market share to a competitor, the soft drink company has cut costs by witholding executive bonuses, changed their advertising agency , and have redesigned the company logo

A. changed their advertising agency , and have
B. changed their advertising agency , as well as
C. has changed its advertising agency, and
D. and changed its advertising agency, and has
E. changed its advertising agency, and

A, B are out because company = singular, please explain how a good one of the rest 3 is maintaining the 'parallel'.

[AIM GMAT]

In response to losing a significant part of its market share to a competitor, the soft drink company has cut costs by witholding executive bonuses, changed their advertising agency , and have redesigned the company logo

A. changed their advertising agency , and have
B. changed their advertising agency , as well as
C. has changed its advertising agency, and
D. and changed its advertising agency, and has
E. changed its advertising agency, and

IMO E

[rohu27]

1)has cut,changed,redesinged or
2) has cut,has changed,has redesinged.
option E reflects 1.

[aspirant2011]

yup agreed with AIM GMAT answer should be E...............

[MAAJ]

C) Has X, Has Y, and Z - Incorrect - the last "has" is missing
D) Has X, Y, and Has Z - Incorrect - the middle "has" is missing
E) Has X, Y, and Z - Correct