On January 1 2017, Xiamen Company made amendments to its defined benefit pension plan that resulted in 75,000 yuan of past service cost. The plan has 5,080 active employees with an average expected remaining working life of 12 years. There currently are no retirees under the plan Assume that a foreign company using IFRS is owned by a company using U.S. GAAP. Thus, IFRS balances must be converted to U.S. GAAP to prepare consolidated financial statements. Ignore income taxes. Required: a. Prepare journal entries for the past service cost for the years ending December 31, 2017, and December 31, 2018, under (1) IFRS and (2) U.S. GAAP b. Prepare the entryfies) that the U.S. parent would make on the December 31, 2017 and December 31, 2018, conversion worksheets to convert IFRS balances to US GAAP