In which of the following cases will the direct order of organizing information in a message be most effective?
a) A memo to an employee informing about the termination of her service.
b) An email containing the weekly newsletter which details the activities of the organization.
c) A letter to the parents of a student regarding his detention.
d) An email to a pharmaceutical company informing about the cancellation of their license.
e) A letter to a customer apologizing for the delay in delivering a shipment.