The correct answer would be option A, Change Agent.
After making the change in design, the pumps became lightweight and were better able to meet customers' requirements. As the Change Agent, Martin identified an opportunity, saw the project from its conception to the development of a light model pump.
Explanation:
A person who brings about change in the organization, or who influences or forces to make a change in the product or organization like organizational effectiveness, improvement or development, then this person is called as a Change Agent.
A Change agent is a person who can be from within the organization or can be from outside of the organization.
So Martin, who is an employee of the firm, and trying to sell the firm's product to the customers, identified an opportunity and told the firm to change the model of pump to get more sales. So he acted as a change agent in this example.
Learn more about Change Agent at:
brainly.com/question/6665943
#LearnWithBrainly