A same meaning or not problem:
The Gill family closed the mill in 1968 and sold them to the new owners in 1980 .
The Gill family sold the mill in 1968 , and the new owners closed it in 1980 .
****
[A]: no

A same meaning or not problem:
In addition to the official Mexican teaching programme , the German language was only taught as a foreign language .
In addition to the German teaching programme , the official Mexican language was taught only as a foreign language .
****
[A]: no

A same meaning or not problem:
It was the last edition in which cyclists participated in commercial teams of 1969 , were used on national teams .
It was the last edition , in which the cyclists participated in commercial teams from 1969 , on national teams were used .
****
[A]: yes

A same meaning or not problem:
In 2006 , the team added a second car for Thed Bjork and was replaced by Richard Goransson in 2009 .
The team added a second car for Richard Goransson in 2006 , and was replaced by Thed Bjork in 2009 .
****
[A]:
no