X Your answer is incorrect. Suppose an analyst believes that the cost of an item (C) was a linear function of the weight of an item (W): C = aW+b where a and bare constants. Which step of the engineering method might this be? i. Develop a clear description iii. Propose or refine a model v. Manipulate the model vii. Conclusions and recommendations ii. Identify the important factors iv. Conduct experiments vi. Confirm the solution iii only vi only O iorii