A chain of sulfur changes is shown: $\text{S}(s) \xrightarrow{\text{change 1}} \text{S}(l) \xrightarrow{\text{change 2}} \text{SO}_2(g)$. Which row gives the correct description of the changes?
- Achange 1: chemical; change 2: chemical
- Bchange 1: chemical; change 2: physical
- Cchange 1: physical; change 2: chemical
- Dchange 1: physical; change 2: physical