Mariner Corporation, which manufactures sail boats, ordered dry dock equipment from Brown Corporation. This equipment was built for the specialized needs of Mariner, and could not be used by any other company. Instead of purchasing the equipment, Mariner elected to enter into a long-term lease agreement with Brown Co. The lease contract was signed on January 1, 2020. It calls for 12 payments of $15,000, with the first one due on December 31, 2020. The lessor's implicit interest rate is not known. Mariner's incremental borrow rate is 8%. a. Is this lease a finance or operating lease? Explain. b. Present the journal entry to be made by Mariner when the lease is signed. c. Show the journal entry that Mariner will make for the December 31, 2020 payment