Which elements should a formal email include? select three options.
extravagant or playful fonts and colors
acronyms or slang common in text messaging
the topic of the message in the subject line
a formal greeting identifying the intended recipient
formatting that separates main ideas into paragraphs

1. a formal greeting identifying the intended recipient

2.the topic of the sentence in the subject line

3.formatting that separates main ideas into paragraphs

cavern

explanation:

for the crossword

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.