You should definitely not type your whole email in all capitals!
Also, you should keep you message brief, this is true: people receive a lot of emails and prefer to read them fast.
I think that the first option is correct (a): Emails don't usually have headings in the text: this would make them too long.
hopefully this is the organizer you're looking for
https://prezi.com/dloczv5jk6g-/wordsworth-graphic-organizer-b/
Miranda stands behind her father when she feels threatened by Caliban
Answer:
A source of primary information useful in a literature review
Explanation:
The term primary source is used broadly to embody all sources that are original. Primary sources provide first-hand information that is closest to the object of study. Primary sources vary by discipline.