Sentence Correction (SC) | Re: Contrary to the scholarly wisdom of the 1950s and early

The sentence structure of the prompt is a little odd here idiomatically. We always say X reported Y to do z or x reported that Y would do Z. it is odd to say that X reported Y would do Z. When we do not use the connector ‘that’ then we can use the infinitive, On the contrary, if we want to take the relative clause route, then the connector 'that' and a verb are necessary. A seems to be a hybrid, which does seem to fit in. D looks less objectionable, IMO