PT25.S1.Q26 Organicism (Hard RC Set 6)

Ashley2018-1

I really need help with answer choice A because it seems perfectly fine to me. Is this answer choice incorrect because the argument against internal relations in paragraph 4 stated that "to truly know an entity, we must know all of its relationships?" Is this not the same thing as "defining the entities of which the system is composed?" I thought they were the same thing because if scientists had to define each and every relationship the entities in the system had, wouldn't that mean all entities would have to ultimately be identified and that was why the author had an issue with internal relations? but if I am wrong, I would like to know. And is A supported by the passage even if it is the incorrect answer choice for this particular question?

And this is more of a general question but are organicism and internal relations two separate, but related concepts?

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