Which Statement Is Correct About the Input and Output of Carbon

Multiple Choice

Which statement is correct about the input and output of carbon during glycolysis?

A) There is an input of 6 carbons (glucose) and an output of 6 carbons (2 pyruvates) .
B) There is an input of 6 carbons (2 pyruvates) and an output of 6 carbons (1 glucose) .
C) There is an input of 6 carbons (glucose) and an output of 6 carbons (6 CO₂) .
D) There is an input of 3 carbons (glucose) and an output of 3 carbons (pyruvate) .