A same meaning or not problem:
Only one percent of the blue diamonds are of this type , and most are grey to natural .
Only one percent of natural diamonds are of this type , and most are blue to gray .
****
[A]: no

A same meaning or not problem:
Born Barry Clark Heacock , his name was changed to Joseph Spalding Coe when his mother Jean Elizabeth Shea married Joseph Spalding Coe Sr. in 1940 in Los Angeles .
Born Barry Clark Heacock , his name was changed to Joseph Spalding Coe when his mother , Jean Elizabeth Shea Joseph Spalding Coe Senior , married in Los Angeles in 1940 .
****
[A]: no

A same meaning or not problem:
From 1993 to 2001 , Huntsman served as an executive for the Huntsman Corporation , chairman of the Huntsman Cancer Foundation , and CEO of Huntsman Family Holdings Company .
From 1993 to 2001 , Huntsman worked as an executive for Huntsman Corporation , Chairman of the Huntsman Family Holdings Company and CEO of the Huntsman Cancer Foundation .
****
[A]: no

A same meaning or not problem:
The renovation of the building was completed in spring 2008 and inaugurated on 17 April 2008 under the new name of William E. Macaulay Honors College .
The building 's renovation was completed in Spring 2008 and dedicated under the new name of William E. Macaulay Honors College on April 17 , 2008 .
****
[A]:
yes