Question

question 7
1 pts
a(n) _____ is a working model of an invention built for testing.
iteration
demonstration
prototype
redesign

Explanation:

A prototype is a preliminary working model of an invention used for testing its functionality, design, and other aspects before full - scale production. Iteration refers to the process of repeating steps to improve a design. Demonstration is showing how something works. Redesign is changing an existing design.

Answer:

C. prototype