On 1/1/2019 The fair value adjustment balance in book of Muscat company was Omr 850 (debit). At December 31, 2019, the portfolio securities of Co. as follows RO Cost Fair Value Security Y 80,000 80,000 Z 85.000 75,000 Which of the following the adjusting entries is required at ?December 31, 2019 Unrealized Holding Loss 10000 Fair Value Adjustment 10000 b o Unrealized Holding loss 10850 Fair Value Adjustment 10850 .co Unrealized Holding Gain or Loss- Equity 9150 Fair Value Adjustment 9150 .do The correct answer not available Fair Value Adjustment 10000 Unrealized Holding Gain or Loss 10000