Consider the following reaction that goes from to in three steps as shown below. Choose the correct option.

- A
Intermediates: ; Activated complexes: ; Rate determining step: II
- B
Intermediates: ; Activated complexes: ; Rate determining step: II
- C
Intermediates: ; Activated complexes: ; Rate determining step: III
- D
Intermediates: ; Activated complexes: ; Rate determining step: I
