What was the question for this implicit rationale, and corresponding answer?
An ore can be dug up. Ores have iron.
 The answer: ore

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The question: What mineral is dug up to smelt in to iron?
Options:
- earth
- ore
- saline
- multivitamin
- michigan