In the sentence pattern for asking questions, the subject is placed immediately after the operator (Operator [did, does, was] + Subject) while in the sentence pattern for making statements, the subject is placed before the verb phrase (Subject + VP). However, some statements may be in question form (You've already eaten?) and some questions (such as rhetorical ones) may be in statement form (Haven't you peed already?).
The answer is d, unenthusiastic.
Answer:
Riddle: What is always in front of you but can’t be seen?
solution: The future.
Riddle: What’s black and white and blue?
Solution: A sad zebra.
Riddle: What has four eyes but can’t see?
Solution: Mississippi
Riddle: Where can you find cities, towns, shops, and streets but no people?
Solution: A map.
Riddle: What has a neck but no head?
Solution: A bottle.
All from
https://www.fatherly.com/play/the-best-riddles-for-kids-not-confusing/