Certified Clinical Medical Assistant CCMA Practice Test

The MA should use a subject line in all capital letters because the simplified letter style is typically used for straightforward and concise communication. Options B and C would not be appropriate as paragraph justification and a formal tone are not necessary in the simplified style. Option D, using abbreviations to save space, may also be unnecessary as the simplified style often involves short and direct sentences. By using all capital letters in the subject line, the MA can emphasize the main purpose of the letter and grab the reader's attention.