On December 29, 2020, Sabre Company sold merchandise for $6,000 on credit terms, 3/10, n/60. The accounting period ends December 31. Provide the following entries under the gross method. Note: If a line in a journal entry isn't required for the transaction, select "N/A" as the account name and leave the Dr. and Cr. answers blank (zero). a. Record the 2020 sale. Omit the cost of good sold entry. Account Name Dr. Cr. . b. Record collection of the account, assuming collection took place on January 5, 2021. Account Name Dr. Cr. Cash (