#2 ist auch richtig, und in diesem Fall relevanter, finde ich, weil es eben um die Queen geht.
Edit nach Bobs edit: Nein, es geht nicht um working class. Es geht um die Queen:
Forget the way she still says "orf" for "off". Note instead her tendency to pronounce the "l" in milk as a vowel.
Just as her husband took his lead from the Duke of Edinburgh, so she liked to take hers from the Queen, pronouncing 'off' as 'orf'.
Received Pronunciation, more commonly known as the Queen's English or the ... don't contain an "r" (i.e. "really" sounds like "rairly" and "off" sounds like "orf").