D
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I was stuck here between C and D. I know that proteases function to digest proteins into smaller fragments, but this didn't make sense to me in the context of the passage. Why would breaking something down cause it to function better? I would think proteases would cause a breakdown/destructive process (not enhancing function)
In the passage, it says that proteases "trigger the conformational changes in EGP that are necessary for fusion." That led me to choose D
In the passage, it says that proteases "trigger the conformational changes in EGP that are necessary for fusion." That led me to choose D