I would say that not is an empty word. Technically, it is an adverb, but since that isn't an option, then only empty word could be the correct answer.
you mean you want a essay?
I think it’s either 1st or 3rd, if it has i it would be first person if not it’s third. I hope this helps.
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at an angle of 90° to a given line, plane, or surface
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Communism (from Latin communis, 'common, universal') is a philosophical, social, political, and economic ideology and movement whose ultimate goal is the establishment of a communist society, namely a socioeconomic order structured upon the ideas of common ownership of the means of production and the absence of social ...
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