Answer:
d. The company would like to raise its ranking on the Transparency International scale.
Step-by-step explanation:
The Transparency International scale is a metric usually associated to countries' overall corruption and not widely applied to measure companies' ethical behavior. Therefore, raising its ranking on the Transparency International scale is not a likely reason for companies to act more ethically, especially when compared to the other reasons presented which directly impacts in a company's operations and profitability.