n relation to the difference between the formal e-mail and the formal letter mentioned in the lesson, which aspect mentions the difference between them: A The e-mail is much faster than the formal letter. B Both, the formal e-mail and the formal letter should be written in formal register. C The e-mail should always be written using technological language, but the letter shouldn’t. D In formal e-mails, abbreviations are allowed whereas in formal letters they aren’t.