Netflix collects $20 cash from a customer on September 1. This $20 is payment for the customer's use of Netflix from August 1 through August 30 (i.e., the customer payment is for PAST service). On September 1, Netflix should make the following journal entry: A. Dr. Cash and Cr. Accounts Receivable B. Dr. Cash and Cr. Unearned Revenue C. Dr. Accounts Receivable and Cr. Sales D. Dr. Cash and Cr. Sales