A same meaning or not problem:
The incumbent Democrat Jim Webb ran for re-election to a second term , but lost in a narrow race against the Republican George Allen .
Incumbent Democrat Jim Webb ran for re-election to a second term , but lost in a narrow race to Republican George Allen .
****
[A]: yes

A same meaning or not problem:
She travelled with John , Marian and Jack in 1912 when they returned to Europe and travelled home with them on the '' Titanic '' .
She travelled with John , Marian , and Jack in 1912 when they returned to Europe and went home with them on the '' Titanic . ''
****
[A]: yes

A same meaning or not problem:
Rich sources of food , as long as they are evaluated as profitable , are advertised by the scouts when they return to the hive .
Rich food sources , as long as they are promoted as profitable , will be evaluated by the spies when they return to the hive .
****
[A]: no

A same meaning or not problem:
The damage in La Paz , Triunfor , San Antonio , San Bartolo , Miraflores , San Jose del Cabo and Cabo San Lucas was particularly difficult .
Damage was particularly heavy in La Paz , Triunfor , San Antonio , San Bartolo , Miraflores , San Jose del Cabo , and Cabo San Lucas .
****
[A]:
yes