What kind of prototype willbe used during the product conceptualization stage?

Rapid prototype

Explanation: Product conceptualization is the process in which concept of a product is analyzed for the growth and testing. Rapid prototype is used for this because it has rapid speed for the making of model of a product by using the computer aided design(CAD) . It has characteristic of making the prototype or model in the three dimension which makes conceptualization more quick that why rapid prototype is preferred.