The most likely reason for the email received to Rebecca from her boss is not effective because the capital letters used by her boss in the email felt to her as if her boss is shouting at her.
Option D is the correct answer.
What is an email?
E-mail is electronic mail sent by a person to another person through the use of an email id.
The email sent by Rebecca's employer to her regarding working on Saturday is written in capital letters. After reading the concerned email, she felt that her employer is shouting at her.
Therefore, the email received to Rebecca becomes ineffective due to having a feeling of shouting out at her from the email of the boss.
Learn more about the email in the related link:
https://brainly.com/question/14714969
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