Answer:
The entry by Reba on April 1, 2020, would include a debit to the investment in trading securities account for the cost of the bonds, which is $800,000 plus any accrued interest, and a credit to the cash account for the same amount.
The entry would be:
Debit Investment in Trading Securities: $800,000 + Accrued Interest
Credit Cash: $800,000 + Accrued Interest
Note: The accrued interest would depend on the number of days from the last interest payment date, which in this case would be December 31 of the previous year, to the date of purchase (April 1). The amount of accrued interest would be calculated as (face value of bonds × annual interest rate × number of days since last interest payment) / 360.