A. Clear subject lines
B. Professional greetings
C. Excessive jargon
D. Proper closing statements
Answer: Excessive jargon
A. Clear subject lines
B. Professional greetings
C. Excessive jargon
D. Proper closing statements
Answer: Excessive jargon
Additional Information: Excessive jargon should be avoided in business emails to ensure clarity and understanding.
Subjects: Business Communication, Business English