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.
Get closer to your subject to simplify the background
Crouch and photograph ur subject against the sky
Find reflections
Fill the frame with different colors
Plain backround
Fill with repeating diagonals or lines
I think it is a minor interval is a whole step smaller than a major interval
Usually they use different shades of one color to make their drawing’s features look artistic and realistic