On January 1,20Y3, Valuation Allowance for Trading Investments had a zero balance. On December 31, 20Y3, the cost of the trading securities portfolio was $371,900, and the fair value was $337,800. Required: Joumalize the December 31,20Y3, adjusting entry to record the unrealized gain or loss on trading imvestments. Refer to the chart of accounts for the exact wording of the account titles. CNOW journals do not use lines for joumal explanations. Every line on a joumal page is used for debit or credit entries. CNOW journals will automatically indent a credif entry when a crodit amount is entered