The ________ of a business message summarizes what you want your audience members to do or think and why they should do so.

A) topic
B) scope
C) sequence
D) main idea

The main idea of a business message is the central message or point that the sender wants to convey. It summarizes what the audience members should do or think and why they should do so. The other options - topic, scope, and sequence - are important elements of a business message, but they do not directly address the purpose or intent of the message.