A mixture is a physical combination of two or more substance
Its the third option C. object complement
Are you trying to find the ones that aren't in bold writing?
Answer:
Well if the bird is a pet it needs to stay in the cage to not fly around all over the place. For instance if an animal is injured or sickly with healthy problems staying in a cage is safer for it because it will not get hurt in the wild.
Explanation:
Hope this helps