Final answer:
Prokaryotes require macronutrients like carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur for cell structure and function. They also need micronutrients such as metallic elements for enzyme function and growth.
Step-by-step explanation:
Prokaryotes require macronutrients such as carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur for cell structure and function. These macronutrients are essential for building macromolecules that sustain life.
In addition to macronutrients, prokaryotes require micronutrients or trace elements, including various metallic elements like iron, manganese, and boron. These elements are necessary for enzyme function and growth.
Therefore, the correct answer is c) Carbon.