The answer is it’s a bryophyte. This group of plants love to grow in moist places and do not have a vascular system lime higher plants groups. Examples of bryophytes are liverworts, mosses, and hornworts. Collectively, they, including vascular plants, lie in the embryophytes group.
The best answer is D, birds. For more information and details on the way a bird's respiratory system works: https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
