When writing a document for multiple audiences, which of the following practices should be adopted to effectively address the audiences' different needs?

When writing a document for multiple audiences, which of the following practices should be adopted to effectively address the audiences' different needs?

letting readers know late in the document that a glossary exists

writing the document in an informal style if it is meant for both internal and external audiences

using personal pronouns to ensure that all members of the audience interpret the text in a similar fashion

using a table of contents so that readers can turn to the portions that interest them

presenting background and explanatory information under the same heading