During the Contact process, sulfur is changed into sulfuric acid. A catalyst is included in the reaction mixture represented by the equation. $2\text{SO}_2 + \text{O}_2 \rightleftharpoons 2\text{SO}_3$ What is the purpose of the catalyst?
- Ato lower the activation energy for the reaction
- Bto oxidise the sulfur dioxide
- Cto reduce the sulfur dioxide
- Dto shift the equilibrium to the right