Answer: D. use a manufacturing process that is compliant with all state and federal regulations.
Explanation:
The options to the question are:
a. pay less taxes
b. substitute the existing labor power with machines
c. double the output of the manufacturing process by asking workers to work overtime
d. use a manufacturing process that is compliant with all state and federal regulations
e. organize picnics for employees
Since Stephen wants to ensure the welfare of secondary stakeholders, he should use a manufacturing process that is compliant with all state and federal regulations
The secondary stakeholders are the individuals or entities that the company doesn't have direct economic transactions with e.g. the government, environmental groups, media etc.
Therefore, to please the secondary stakeholders, he must abide to the necessary rules and regulations.