On January 1, an investment account is worth 200,000. M months later, the value has increased to 210,000 and 15,000 is withdrawn. 2 months prior to the end of the year, the account is again worth 210,000 and 15,000 is withdrawn. On December 31, the account is worth 220,000. The annual ettective yield rate, using the dollar-weighted method, is 27.4%. Calculate M A. 10 O 8.6 O C.4 O D.2 EL 1