A recent study indicates that the powerful effects of random reinforcement, as evidenced by the multi-million dollar collectable card game industry, is no longer limited to casinos, test subjects, and stock market investors.
A - A recent study indicates that the powerful effects of random reinforcement, as evidenced by the multi-million dollar collectable card game industry, is no longer limited to casinos, test subjects, and stock market investors.
B - No longer limited to casino patrons, test subjects, and stock market investors, as evidenced by the multi-million dollar collectable card game industry, are the powerful effects of random reinforcement as indicated by a recent study.
C - As evidenced by the multi-million dollar collectible game industry, a recent study indicates that the powerful effects of random reinforcement are no longer limited to casino patrons, test subjects, and stock market investors.
D - A recent study indicates that the powerful effects of random reinforcement, as evidenced by the multi-million dollar collectible card game industry, are no longer limited to casino patrons, test subjects, and stock market investors.
E - A recent study indicates that the powerful effects of random reinforcement, as evidenced by the multi-million dollar collectable card game industry, is no longer limited to casinos, test subjects, and stock market investors. (I think this is the same sentence as A)
The correct is D. But my question is about the subject of the question: 'the powerful effects'. If you remove the modifier 'as evidenced by the multi-million dollar collectible card game industry' you are left with: 'a recent study indicated that the powerful effects of random reinforcement are no longer limited...'. Or more basic you are left with 'the effects are'.
My question concerns the 'that'. It seems to me that 'the powerful effects' is part of a 'that' clause which would preclude it from being the subject of the sentence. I understand the meaning of the sentence, which would make 'effects' and not 'study' the subject of the sentence.
My question is what role does 'that' play in this sentence? How can the subject of the sentence be part of a 'that' clause? I've had this type of question about the role of 'that' on other questions so I thought I would finally ask.