On May 31, the Cash account of Bottle's R US had a normal balance of $5,500. During May, the account was debited for a total of $12,700 and credited for a total of $12,000. What was the balance in the Cash account at the beginning of May?

A. A $4,800 debit balance

B. A $4,800 credit balance

C. A $6,200 debit balance

D. A $0 balance