What is the most important step to cellular respiration

<3 Hey Y'all <3

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate

answer; /// i believe that the correct answer is (50%);

it’s lava came from an explosive eruption