Answer:
The answer is: B) CMO planned amortization class tranche
Step-by-step explanation:
A CMO (collateralized mortgage obligations) PAC (planned amortization class) Tranche is the safest way the lady can invest considering her age and financial needs. A PAC is an asset backed security that is an extremely safe investment that guarantees regular payments (in tranches). The downside is that it offers a very low yield. The safer the investment, the lower the yield.