Which of the following glycolysis reactions produced ATP? Alright. To answer this question correctly, we just have to remember memory tool 2. And, memory tool 2 tells me a second 6 pack at the weekend. So "at" stands for ATP, a week is 7 days long, and the end of the last reaction of glycolysis is reaction 10.

Here, we don't have to worry about the first part, a second 6 pack. That just deals with the number of NADHs that we're producing or involved. But here, we're just talking about ATP. And the memory tool tells me that ATP is produced in reaction 7 and 10. This would mean that my answer would have to be option c.