Question 4 - 4 Marks (7 Minutes) The comparative Statement of Financial Position of Effing Company for December 31, 2019 and 2020, reported the following selected amounts: 2019 Office supplies on hand $ 2,300 $ 1,600 Unearned rent revenue 11,500 11,000 2020 The 2020 income statement reported the following: Rent revenue Office supplies expense $19,000 16,600 Required: Calculate A. The total amount of office supplies purchased during 2020, B. The total amount of rent collected during 2020