The diagram illustrates the Boltzmann distribution for the energies of particles in a gas. This gas takes part in a reaction with an activation energy, $E_a$. The highest point on the curve is marked $P$. If the same reaction is done in the presence of a catalyst, which statement is correct?
- AThe peak $P$ is at a lower height and the position of $E_a$ moves to the left.
- BThe peak $P$ is at a lower height and the position of $E_a$ moves to the right.
- CThe peak $P$ remains at the same height and the position of $E_a$ moves to the left.
- DThe peak $P$ remains at the same height and the position of $E_a$ moves to the right.