The rate of a reaction was followed by the absorption of light by the reactants and produc...

The rate of a reaction was followed by the absorption of light by the reactants and products as a function of wavelengths (λ1, λ2, λ3) as time progresses. Which of the following mechanisms is consistent with the experimental data?

(a) A → B. A → C

(b) A → B + C

(c) A → B, B → C + D

(d) A → B. B → C