Which of the following is not a conflicting motivation that sergei must sort out about his last wish? a) he will be a murderer. b) he will lose the goldfish. c) he will lose his only friend. d) he will no longer be alone.

I believe the answer is D. He will no longer be alone
The conflicting motivation about his last wish revolves around whether he should choose to use his wish to make Yoni came back to live and let the goldfish go or to keep the goldfish and be a murderer.
Either choice technically won't make him be 'alone', so i think option d is not suitable in this context.