Answer:
C) 6 protons, 6 electrons, and 7 neutrons.
Step-by-step explanation:
The number of protons in an atom is called the atomic number, and it is unique to each element. Since carbon has an atomic number of 6, every atom of carbon will have 6 protons.
Carbon-13 is a variant of carbon that has an additional 7 neutrons in its nucleus, but the number of protons and electrons remains the same as any other atom of carbon. Therefore, an atom of Carbon-13 will have 6 protons, 6 electrons, and 7 neutrons.