During project executing, a functional manager asks you to use a model C generator instead of model B on your project. The functional manager says that model $C$ will solve the needs of the project and provide some benefits to the manufacturing department. You look at the cost associated with model $C$ and discover It is substantially higher than model $B.$ If you are not sure you can Justify the more expensive model, what is the BEST thing to do$?$

Use model $C$ and cut other activities to make up for the added cost.

Review the specifications of each to validate the manager's claims.

Do a life cycle analysis and present the results to your boss.

Analyze the differences in using each model and present them to the sponsor.