Solid copper(II) carbonate reacts with dilute sulfuric acid. $\text{CuCO}_3 + \text{H}_2\text{SO}_4 \rightarrow \text{CuSO}_4 + \text{CO}_2 + \text{H}_2\text{O}$. The reaction rate may be altered by changing the conditions. Which of the following changes will always increase the rate of this chemical reaction?
- A1, 3 and 4
- B1 and 3 only
- C2 and 3
- D3 and 4 only