Which formula represents the process by which autotrophs produce their own energy?

The correct answer accurately reflects the biochemical process of photosynthesis, through which autotrophs, like plants and some bacteria, convert sunlight, carbon dioxide, and water into glucose and oxygen. This process is essential for autotrophs as it allows them to produce their own energy in the form of glucose, which they use for growth and metabolism.

In this equation, carbon dioxide and water serve as the raw materials, while energy, typically from sunlight, drives the entire reaction. The glucose produced serves as an energy source for the plant, and oxygen is released as a byproduct. This is a fundamental aspect of ecological energy flow, as autotrophs are the primary producers in most ecosystems.

The other options do not correctly represent the process of energy production in autotrophs. For instance, options involving glucose and oxygen as reactants describe cellular respiration rather than photosynthesis. Therefore, the correct formula encapsulates the process by highlighting the inputs and the role of energy in producing glucose and releasing oxygen.