Correct Answer: Phosphoglyceric acid

Solution : The correct option is Phosphoglyceric acid.

Photosynthesis's first stable product is "3-phosphoglycerate (3-PGA)" or "phosphoglyceric acid." This three-carbon chemical is created during the first stage of photosynthesis, known as the "Calvin cycle" or "light-independent reactions." It is an important step in the conversion of carbon dioxide into glucose and other organic molecules in plant chloroplasts via a series of chemical processes.