I would not say this is a particularly challenging passage, although Q.3 is a bit confusing. To approach this, I would start by paraphrasing the paragraph in your own words. Although it looks like a Vocab-in-Context question, the "other" mentioned here is an abstract idea, so we need to understand the thrust of the paragraph. B is tempting because it reuses words from the paragraph, but it does not actually answer the specificity of the question. First, we need to learn what this concept of "other" actually is.
Paraphrase:
- Men are authors
- Women are seen as "other" and dominated (first mention of "other"!!)
- Wordsworth thought his sister = Nature
- They had a complex relationship
- Dorothy accepted that she was "other"
So even though the paragraph mentions Wordsworth thought of Dorothy as representative of "Nature", the word "other" in the question is a REPEAT from the 2nd sentence in the paragraph, which uses the key word "dominated".
Thus, "other" means men are "authorial" while women are "dominated."
"Acted upon" is a synonym for "dominated."
