Credit cards. Made Master Card sales totaling $12,000. Service charge fee is 3%. The entry is Select one: a. debit cash 12,000; credit sales 12,000 b. debit sales 12,000; credit cash 11,640; service charge expense 360 c. debit sales 12,000; credit cash 12,000 d. debit cash 11,640; debit service charge expense 360; credit sales 12,000