A same meaning or not problem:
The brother of Philip Gunawardena and the eldest son of Dinesh Gunawardena , he was educated at Royal College , Colombo .
The brother of Dinesh Gunawardena and the eldest son of Philip Gunawardena , he was educated at the Royal College , Colombo .
****
[A]: no

A same meaning or not problem:
However , before he could leave for Texas and his new headquarters , he died in an epidemic of yellow fever that swept through southeast Louisiana .
However , before he could go to Louisiana and his new headquarters , he died in an epidemic of yellow fever that swept through southeast Texas .
****
[A]: no

A same meaning or not problem:
The circular mirrors are effective in lighting fires , while the parabolic mirrors are not , although they may have been used to generate smoke .
The circular mirrors are effective at lighting fires while the parabolic mirrors are not , although they may have been used to produce smoke .
****
[A]: yes

A same meaning or not problem:
Doyle said the line Maryland -- Pennsylvania Mason -- Dixon is exact :
Doyle said the Maryland -- Pennsylvania Mason -- Dixon line is exactly :
****
[A]:
yes