Here's a problem to solve: Millions of people living all over the world have cancer. Is cancer a pandemic?

Among the 4 following options, which is the correct answer?

- A: No, because cancer is not contagious.
 
- B: No, because cancer is not always fatal.
 
- C: Yes, because millions of people have cancer.
 
- D: Yes, because people all over the world have cancer.
 