Answer:
c. Received Pronunciation (RP).
Explanation:
Received Pronunciation, or more abbreviated as RP is the more commonly acknowledged form of spoken English that is considered to be the true British accent. It is also known by various other names such as "Oxford English, Queen's English, BBC English" etc.
Received Pronunciation is a variety of the English spoken in Britain without any identifiable regional space. Though often instantly recognized as the 'official' British English, its use and importance is on the wane. Not everyone is using it nowadays, though it is more likely to be seen being used in formal speeches and educated speakers. The one main important fact about this RP is that it is an accent and not a dialect. Thus, the standard for the English language in the United Kingdom is known as Received Pronunciation.
