A human cell's nucleus contains how many chromosomes?

A) 12
B) 12 pairs
C) 23
D) 23 pairs

Nucleus

The central and most important part of an atom, containing protons and neutrons, or a membrane-bound organelle in cells containing genetic material.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA).