Show all work on all long problems. The more you detail, the better it is. 4. Plotner Corporation has the following trading portfolio of stock investments as of December 31, 2020. Security A B Cost $19,000 22,000 34,000 $75,000 Fair Value $15,000 27,000 29.000 $71,000 On January 22, 2021, Plotner Corporation sold security C for $32,000. Instructions (a) Prepare the adjusting entry for Plotner Corporation on December 31, 2020, to report the portfolio at fair value. (b) Indicate the balance sheet and income statement presentation of the fair value data for Plotner Corporation at December 31, 2020. (c) Prepare the journal entry for the 2021 sale