Answer:
Do you want me to just draw a pencil?
Explanation:
Answer: Option 2: Stubby was a stray that had proved himself in battle.
Explanation: It makes the most sence based on the short story. Also they asked why they took him on the battlefield, not why the kept him in general.
The actual material being printed on is usually paper which is out of wood, how ever the printer may be made out of metal, and I am confused on which one you are asking about.