The interactions of the proteins that govern the operation of the human brain are not determined by the information
Why this is right
On Necessary Assumption, answers that are ruling out something using words like "no / not" are very lovable. That is a common form of a correct answer. So if you felt very clueless on this problem, the smartest guess would be to avoid the answers with extreme or comparative wording and pick the answer with ruling-out wording. This answer is essentially matching our prediction that the author was assuming, "computers wouldn't be able to replicate the interactions of the proteins". The author was thinking, "Part of the info encoded in the human genome is the structures of these proteins, whose interactions govern the operation of the human brain. But the interactions aren't encoded in the genome. So if a computer only had the info in the human genome, it wouldn't be enough to achieve AI. The info in the genome would allow the computer to build these protein structures, but [she assumes] it wouldn't tell those structures how to interact in the way they do in our brain to achieve intelligence." If we negate this answer, it's saying that "the interactions are determined by the info in the human genome." This would hurt the argument because it would make it seem like the author's objection was a non-objection. The author would be arguing, "The info in the genome isn't enough for intelligence. After all, the brain needs these interactions of proteins!" And our negation would be saying, "Chill, dude. The info in the genome actually includes info that determines these interactions of proteins."
Skill tested: Necessary Assumption · how this choice captures the argument's function is the move to repeat next time.