Which set of materials includes the fewest number of ingredients that are needed to make a lemon into an effective battery that can power a digital clock?

The chemical properties that are significantly present inside the lemon are can be utilised to act as an electrolyte used to power electrical load devices. In addition to that, the juice inside this fruit which contains rich sodium content would most likely be connected with zinc and copper electrodes to power up the digital clock.

The correct answer is c. Please give me brainlest I hope this helps let me know if it’s correct