to provide energy for cell activities to produce sugar for storage in cells to release oxygen for breathing to supply carbon dioxide for photosynthesis
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following best describes the purpose of cellular respiration?
Possibilities:
- to provide energy for cell activities
- to produce sugar for storage in cells
- to release oxygen for breathing
- to supply carbon dioxide for photosynthesis

to provide energy for cell activities