Why do birds fly. you for the answer i really need it?

Because they have wings that can nake them fly

If a bird claps its wings it moves air arround creating a pressure diffrence.
The air will then try to move back up lifting the bird up.
The wind presses him up, this is called lift

The reflection of the candle in the concave mirror formed an upside-down virtual image that is smaller than the candle.in other words. the answer is the third option, c