Taking the whole poem into account, I think the correct answer must be C.
The jar is a small, common, impersonal object, but in Stevens' view, it affects the nature, depriving it of its inherent wilderness. Although it is one of a thousand, it still has the power and dominion over nature. Its meaningless existence leaves a negative trail in this world. If the jar was regarded as faceless a person living in a highly commercialized, industrialized world, and the nature as freedom, the parallel would be all the more effective.
What are the answer choices
The biological purpose of alcoholic fermentation is to provide anaerobic energy to unicellular microorganisms (yeasts) in the absence of oxygen from glucose. In the process, the yeasts obtain energy by dissociating glucose molecules and generate alcohol and co2 as wastes.
I would agree with you on internal!!
