Photochromic lenses in spectacles become darker in bright sunlight because silver crystals are formed in the reaction shown below. $\text{Ag}^+ + \text{Cl}^- \rightarrow \text{Ag} + \text{Cl}$ Which of the statements below are correct for this reaction?
- A1, 2 and 3 are correct
- B1 and 2 only are correct
- C2 and 3 only are correct
- D1 only is correct