In a Business Letter the 'Yours Sincerely' Complimentary Close Is

Multiple Choice

In a business letter the 'Yours sincerely' complimentary close is normally used when

A) the person's name is known.
B) you write to someone in the organisation who you do not personally know.
C) you open with 'Dear Sir' or 'Dear Madam'.
D) you write to a group of people to whom you have sent a standardised letter.