After a failed sales presentation, Lev circulated an angry email to his colleagues in which he explained their company's goals. One of his colleagues later told Lev that she thought the email was insulting. What error did Lev make?

Multiple choice question.

He talked down to his readers by telling them something they already knew.

He relied on overused expressions instead of using sincere language.

He offered advice that his colleagues did not need or want.

He assumed that his colleagues felt the same way he did.