You need to let your employees know that there will be a mandatory meeting next monday to discuss your company's health insurance benefit. the most appropriate channel to communicate this message to your employees is

Using an information circular

Explanation: An information circular is used by organizations to send key informations to workers there, it is normally sent ahead of time to allow for proper planning on the path of workers to ensure compliance.

As an employer I would send out an information circular prior to the meeting to ensure full attendance of my staff.

answer; sensory adaptation;

answer; trojan horse;