On May 1 of the current year, Cassandra Corp. issued $600,000 of 4% bonds payable at par with interest payment dates of April 1 and October 1. In its income statement for the current year ended December 31, what amount of accrued bond interest payable should Cassandra report?

a. 4,000

b. 6,000

c. 10,000

d. 16,000