What is true about the chemiosmotic synthesis of atpt?

The Actual production of Adenosine Triphosphate [ATP]

Explanation:

The chemiosmotic theory

The theory suggests that the actual production of adenosine triphosphate  ATP in cellular respiration of respiring cells takes place through the process of chemiosmosis that makes the electrochemical gradient across the inner and outer membranes of mitochondria.Breaking down of energy-rich molecules such as glucose the energy is released in the form of NADH and FADH2.It is found that for each glucose molecule 36 molecules of ATP can be produced during cellular respiration. These molecules are generated by the Krebs cycle, the electron transport system, and chemiosmosis.Two ATP molecules are produced through glycolysis, so the total number of molecules formed is 38 molecules of ATP.

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.