Why is time-series forecasting important for demand planning in advertising, and how does AI improve it?

• A. Forecasting informs spend and inventory; AI captures nonlinear trends, seasonality, exogenous signals, and adapts to regime changes.
• B. Forecasting has no use in advertising; AI only optimizes creative.
• C. AI replaces forecast entirely with random.
• D. Forecasting uses only past spend, ignores seasonality.

Answer: (A)