The second alternative is correct (B).
"Gold in California ignited interest in a railroad to reach the West. However, Americans disagreed on where to build the railroad."
The use of the conjunction "however" in this context connects the two sentences with a contraposition, giving the exact meaning for the continuity of the text. In this way, it became clear that there was a need to build a railroad, but there was no unity among Americans about where to build the railroad.
The correct answer is "I felt a little sorry, and would have called him back, but I found he was returning of his own accord."
Explanation: In "The Cabuliwallah" by Rabindranath Tagore, the narrator did not like the idea of the Cabuliwallah showing on the day of his daughter's wedding, and denied his request to see her. The narrator begins to feel bad for him, and before the Cabuliwallah leaves, he accepts the gifts he brought for her.
Prison because I have a friend who goes there
The second-person “you,” likening the reader to a trusted confidant. The final line of the flashback portion of the novel is “God, I wish you could’ve been there,” suggesting Holden’s loneliness would have been relieved by having a friend like the reader with him during his experiences. The second-person address also draws attention to Holden’s unreliability as a narrator. Throughout the novel, Holden tries to convince the reader to interpret events one way while simultaneously presenting evidence that the opposite interpretation is correct. For example, he frequently insists how well he knows people – “The thing is, you didn’t know Stradlater. I knew him,” or “I know old Jane like a book.” However, his interactions with Stradlater, and his reluctance to contact Jane, suggest he is neither as intimate nor comfortable with them as he’d like the reader to believe. He also makes several references to how much he hates movies, and thinks his brother D.B. is a “prostitute” for writing for them, yet he mentions going to the movies several times. In these ways, Holden’s attempts to control the reader’s impression of him end up revealing who he really is.
I think that what you are asking is which word is a subject complement in that sentence. What I think the answer to this question is the word third.