Final answer:
The cooling method that uses cold air blown at high speeds to quickly cool food is called blast chilling, which is answer (c) in the question provided.
Step-by-step explanation:
The cooling method that pushes cold air across food at high speeds to remove heat is known as blast chilling. This process is used to quickly cool food products, therefore, the correct answer to the question is (c) Blast chilling. Blast chillers work by circulating chilled air over the food at high velocities, which significantly reduces the temperature of the food in a short amount of time. This method is particularly useful in the food industry for preserving the quality and safety of food by slowing down bacterial growth that can occur in the 'danger zone' temperatures between 40°F and 140°F (4°C to 60°C).