12. A clay model of a new automobile design would be considered a

a. wireframe model
b. surface model
c. mock-up
d. prototype

C

right

To determine the correct answer, let's break down the options:

a. Wireframe model: A wireframe model is a simplified representation of a design, typically made with lines and basic shapes. It does not have any surface details or textures.

b. Surface model: A surface model is a more detailed representation of a design that includes surfaces and textures. It captures the visual appearance without considering the internal structure or functionality.

c. Mock-up: A mock-up is a physical representation or model used to simulate the final product. It may not have all the functionalities of the final product but is created to give a realistic representation for testing and evaluation purposes.

d. Prototype: A prototype is an early working example of a final product that is created to test and validate the design. It closely resembles the final product in terms of appearance and functionality.

Given the description, the clay model of a new automobile design would be considered a mock-up. It represents the visual appearance of the automobile but may not include the full functionality or internal structure of the final product.