Which of the following actions can be considered unethical behavior in a workplace?

Making decisions based on personal gain is indeed considered unethical behavior in the workplace because it undermines the principles of fairness, integrity, and accountability that organizations strive to uphold. When individuals prioritize their own interests over the collective good of the team or the organization, it can lead to conflicts of interest and can diminish trust among colleagues. This behavior not only affects morale but can also compromise the overall functioning and culture of the workplace.

In contrast, following the company's code of conduct, meeting organizational goals, and communicating transparently with team members all promote ethical practices and foster a cooperative and productive work environment. These actions are aligned with the values that support ethical business operations and encourage positive relationships within the workforce.