Among the objects listed, D. a parachute would experience the most air resistance when falling through the air.
Parachutes are designed to maximize air resistance (drag) by having a large surface area that captures air. This feature slows down the descent significantly compared to other objects. While a feather and a flat piece of paper also experience a substantial amount of air resistance relative to their weight due to their shapes and sizes, a parachute's design is explicitly meant to create the highest drag effect.
In summary, the hierarchy of air resistance experienced by the objects as they fall would generally align as follows, from most air resistance to least:
- Parachute
- Flat piece of paper
- Feather
- Brick