The correct answer is D. Purchase of insurance policy.
Discretionary income is the amount of money left over after taxes and essential expenses have been paid. It can be used to save, invest, or spend on discretionary items.
Debt restructuring is the process of changing the terms of a loan, such as the interest rate or repayment schedule. This can help to reduce monthly payments and make it easier to repay the loan.
Transfer of loans is the process of moving a loan from one lender to another. This can be done to get a lower interest rate or to consolidate multiple loans into one.
Restructuring of investment is the process of changing the way that an investment is structured. This can be done to reduce risk or to increase returns.
Purchase of insurance policy is the process of buying an insurance policy. This can provide protection against financial losses due to events such as death, illness, or property damage.
Of the above options, only the purchase of an insurance policy does not directly increase discretionary income. While insurance can provide peace of mind and protect against financial losses, it does not generate income. The other options all have the potential to increase discretionary income by reducing expenses or increasing income.