Answer:
Your answer would be 14,880, so it would be greater than 12,400.
12,400 * 1 1/5 = 14,880
Your answer is the first option, Lorenzo's icing will be darker!
Step-by-step explanation:
If they both added the same amount of yellow dye, than blue will determine how dark their icing is. Since Mariana added less blue, her dye will be lighter!