All of the following EXCEPT ________ will make your messages mobile friendly.

A) thinking in small chunks
B) avoiding the use of white space
C) using simple formats
D) considering horizontal and vertical layouts

Avoiding the use of white space will not make your messages mobile friendly. In fact, using white space can help make content more readable and easier to navigate on smaller screens. Choices A, C, and D are all important factors in creating mobile-friendly messages. Thinking in small chunks means breaking up content into manageable segments, using simple formats and considering both horizontal and vertical layouts can help ensure that messages are easily viewed on mobile devices.