Which equation shows a correct propagation step in the chlorination of ethane?
- A$\text{C}_2\text{H}_6 + \text{Cl}\bullet \rightarrow \text{C}_2\text{H}_5\text{Cl} + \text{H}\bullet$
- B$\text{C}_2\text{H}_5\text{Cl} + \text{Cl}\bullet \rightarrow \text{C}_2\text{H}_4\text{Cl}\bullet + \text{HCl}$
- C$\text{C}_2\text{H}_5\text{Cl} + \text{H}\bullet \rightarrow \text{C}_2\text{H}_5\bullet + \text{HCl}$
- D$\text{C}_2\text{H}_5\bullet + \text{Cl}\bullet \rightarrow \text{C}_2\text{H}_5\text{Cl}$