Question: Here's a question and a few possible answers:   Q: Where would a marmot be unable to walk to another continent? Possible A: south america, north america, cage, new zealand, countryside  Why is "new zealand" an answer aligned with human common sense?
Answer: rivers flow trough valleys.

Question: Here's a question and a few possible answers:   Q: What might an elderly person install a railing on to help them pull themselves up? Possible A: deck, stairwell, flight of stairs, feet, house  Why is "stairwell" an answer aligned with human common sense?
Answer: stairs often have railings

Question: Here's a question and a few possible answers:   Q: The husband never worked a day, but after getting divorced received alimony, what did he become as a result? Possible A: emotional distress, bad feelings, richer, depression, guilty  Why is "richer" an answer aligned with human common sense?
Answer:
this word was most relevant.