The correct answer is A. Mr. H Potter, The cupboard under the Stairs, 4 Private Drive, Little Whinging, Surrey
Step-by-step explanation:
The information presented, refers to the address where Harry Potter (main character of a set of novels by J.K. Rowling) received his letters. In terms of punctuation as any other address, it is important to use either commas or periods to separate each section of the address.
According to this, after the name of the receiver (Mr. H Potter) it is necessary to include a period or comma, then after the section "the cupboard under the stairs" because this refers to the specific section of the house, then after the number of the house and name of the street (4 Private Drive), and finally, after the name of the town (Little Whinging) that is right before the name of the county. Thus, option A shows the correct punctuation because commas separate the correct sections in the address.