Which of the following statements about full immunization is not true?

Possible Answers

PV $($Assets$)=PV($Liabilities$)$

Duration$($Assets$)=$ Duration$($Liabilities$)$

For each liability, there is one asset cash inflow before it and one after it$.$

It protects a company against any changes in interest rates

A company could be fully immunized without achieving Redington immunization.