You have 4 friends that each owe you money, shown in the table below. Assume the yield to maturity for all four debts is 17.28%. Friends Amount_Owed Debt_Due Kane Dillon R5910 3 years Rihana Carter R9370 1 years Jordynne Wilson R7150 4 years Saleem al-Adel R7140 2 yea Calculate the Macaulay Duration of debt portfolio. A) 2.1568 years B) 1.8117 years C) 1.4235 years D) 2.5882 years E) 2.4911 years