The Toronto Headquarters of a Multinational Company Typically Houses a Number

The Toronto headquarters of a multinational company typically houses a number of employees from its various branches across the world. English is the common language of communication, but most employees are not native speakers. How does this fact affect business communications addressed to all the employees located at the company's headquarters?

A) The primary audience will be difficult to determine.
B) Geographic location will be important in determining message composition.
C) Cultural factors may inhibit understanding of the message.
D) The size of the audience will play an important role in determining message composition.