A researcher conducted an experiment to investigate the interactions between a certain plant and its environment. The researcher placed the plant in a sealed container, placed the container and the plant next to a light source, and monitored the levels of oxygen and carbon dioxide gases inside the container. At the beginning of each day, the researcher opened the container to allow air to enter the container. The researcher recorded the following observations. 1. The plant needed to be watered daily. 2. The mass of the soil did not change over two months. 3. The amount of carbon dioxide decreased daily. 4. The amount of oxygen increased daily. Which of the following statements is best supported by the researcher's observations?

While plants do absorb nutrients and water from the soil, the observation that the mass of the soil did not change over two months suggests that the soil was not a significant source of food for the plant in this context. This statement does not directly relate to the gas exchange observations recorded.

This statement contradicts the observed data. The increase in oxygen levels indicates that the plant was releasing oxygen, likely due to photosynthesis, rather than absorbing more than it released. Thus, this option does not align with the recorded changes in gas concentrations.

This statement is inaccurate as it misrepresents the process of photosynthesis. Instead of converting water into carbon dioxide, the plant utilizes carbon dioxide and water to produce glucose and release oxygen. The observations do not support this incorrect interpretation of the plant's gas exchange processes.