Ayesha's Company Will Be Raising the Prices of Its Basic

Ayesha's company will be raising the prices of its basic services, and Ayesha must write to customers to inform them of these increases. What is the most important thing she should do when writing this message?

A) She should prove that all her competitors are raising prices too.
B) She should explain the reasons and hook the increase to benefits.
C) She should apologize to her customers.
D) She should promise a rate decrease in the future when the economy improves.