The correct answer is C.

The ''size of prize'' must be credible. In category management, it is not enough to show a large opportunity number just to impress the buyer. The opportunity should be reasonable, tied to facts, and supported by clear math. CMKG's fact-based presentation guidance specifically emphasizes defining the growth opportunity, quantifying the opportunity, identifying the strategy, and creating action with tactics. It also says presentations should include relevant insights derived from category data to support the idea.

Option A is wrong because hiding the math weakens trust. Option B is too broad because ''comprehensive analytics'' can become overwhelming if it is not focused. Option D is dangerous because inflating the opportunity just to get attention undermines credibility. A strong size-of-prize statement should make the buyer think: ''That number is realistic, the logic is clear, and the path to achieving it makes sense.''