Here's a problem to solve: Incandescent light bulb filaments are best preserved by filling the bulb with a low density, non-reactive gas. From which group of elements on the periodic table is this gas most likely selected?

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

- A: 1 (1A)
 
- B: 2 (2A)
 
- C: 17 (7A)
 
- D: 18 (8A)
 