I need you to explain to me why the right answer(circled in red) is the right answer.

10. Which of the following is true regarding bonds issued between interest dates? (a. The purchase price is increased by an amount equal to the interest earned on the bonds since the last interest payment date. b. The amount of interest expense to the issuing corporation is the sum of the semiannual interest payment and the amount of interest prepaid by the purchaser. c. The purchase price is decreased by an amount equal to the interest earned on the bonds since the first interest payment date. d. On the first interest payment date, the bondholder receives in advance the entire semiannual interest payment. 11. A common means of financing the acquisition of PP\&E in a proprietorship or partnership form of business organization is a: a. Revenue bond b. Treasury note c. Mortgage note d. troubled debt restructuring 12. Custom Nature Company exchanged land with a fair market value of $750,000 for Argan Corporation's $916,000, zero-interest-bearing, 5-year note. The $750,000 represents the present value of the note at an appropriate rate of interest. Custom Nature Company should record the difference ($166,000) as: (a. Premium on the sale of land. b. Gain on the sale of land. c. Premium on notes receivable. (d. Discount on notes receivable. 13. Which of the following is not a feature that can be associated with preferred stock issues? a. Convertible into common stock. b. Preference as to dividends. c. Voting. d. Preference as to assets in the event of liquidation