The correct answer is Respiration takes place both during day and night.Explanation:Plants require oxygen to respire and release carbon dioxide.During the respiration process, oxygen is used, and byproducts such as carbon dioxide, water, and energy are produced.Respiration is the process by which organic matter is broken down with the help of enzymes in order to provide energy to the organism's cells.It is the basic process for the release of energy.Food molecules are oxidised and broken down into components such as water and carbon dioxide during respiration, and as a result energy is released in the form of ATP (Adenosine triphosphate).Plants respire both during the day and at night to produce the energy needed by the plant for various other processes.Photosynthesis occurs only during the day.To obtain the energy required for survival, all living organisms must respire.