Although Copernicus proposed a heliocentric model to describe the apparent motion of celestial objects almost a thousand years after Aristarchus,
he is still credited to have been its originator.
A.he is still credited to have been its originator
B.they are still credited to have been its originator
C.he is still credited with the origination of that model
D.Copernicus is still credited with its origination
E.Copernicus is still credited to have been its originator
My gut feeling is that there is some disconnect with the semantics of the OA, especially with reg. to the pronoun 'He' as we can see below. Let's replace 'he' with Aristarchus
Although Copernicus proposed a heliocentric model to describe the apparent motion of celestial objects almost a thousand years after Aristarchus, Aristarchus is still credited to have been its originator.
Does this sentence make any logic, after using the contrast marker 'although'? I doubt whether there can be any hesitation about the reference of 'he' and it must clearly point to Copernicus.
Equally important, is the difference between the meaning of the word the origination and the originator. An originator is a person who takes the original or the first step. Therefore, Copernicus is more apt to be described as the originator in the context. On the contrary, origination means the beginning. Neither Copernicus nor Aristarchus can be called as the person responsible for the cosmic phenomenon's beginnings.
The OA D has shortcomings IMO.