A financial obligation requires a payment of $25,000 in 12 months, $35,000 in 18 months, and $30,000 in 30 months. when can the obligation be discharged by a single payment of $83,000 if interest is 6.5% compounded semi annually?

A financial obligation requires the payment of $25,000.00 in 12 months, $35,000.00 in 18 months, and $30,000.00 in 30 months. When can the obligation be discharged by a single payment of $83,000.00 if interest is 6.5% compounded semi-annually? Select one: a. 6 months O b. 5 months C. 4 months d. 9 months e. 11 months