Government and contractor personnel work side by side on the Zephyr project in a government office building. Emails were sent out to remind all employees (government and contractor) of the offsite dinner to celebrate Administrative Assistants' Day. Which of the following statements follows ethical principles?
a. Only government personnel were reminded of the offsite dinner because it is a government office building.

b. Contractor personnel were excluded from the emails about the offsite dinner because they are not directly employed by the government.

c. Both government and contractor personnel were included in the emails about the offsite dinner as a demonstrating equal treatment and respect for all employees.

d. Only contractor personnel were reminded of the offsite dinner as a way to show appreciation for their hard work on the project.