A building with an appraisal value of $136,357 is made available at an offer price of $158,171. The purchaser acquires the property for $34,685 in cash, a 90-day note payable for $20,030, and a mortgage amounting to $52,987. The cost basis recorded in the buyer's accounting records to recognize this purchase is

a.$136,357

b.$158,171

c.$107,702

d.$123,486