Methanol is produced when carbon monoxide reacts with hydrogen. $\text{CO}(g) + 2\text{H}_2(g) \rightleftharpoons \text{CH}_3\text{OH}(g)$. The forward reaction is exothermic. Which of the following statements are true?
- A1 and 2 only
- B1 and 3 only
- C2 and 4 only
- D3 and 4 only