The correct answer is c) Glycolysis.
Glycolysis is the metabolic pathway that occurs in the cytoplasm of the cell where glucose is broken down into pyruvate, producing a small amount of energy in the form of ATP. This process is essential for cellular respiration and kicks off the breakdown of glucose to extract energy.
On the other hand, photosynthesis primarily occurs in the chloroplasts of plant cells, the Krebs cycle takes place in the mitochondria alongside the electron transport chain. Thus, among the options provided, glycolysis is the only process that occurs in the cytoplasm.