The correct answer is diversification which means to make your portfolio more diverse, so that if one investment turns out to be a failure, there is still the possibility to make up for it through the rest of your investments. A financial intermediary is a person that is a contact between the transactors and helps the completion of the transaction. Income distribution is a term that refers to how the incomes of people vary. Finally, a financial asset can be either capital, land or some technology, in general anything that one can use to make money (or with an inherent financial value, like a piece of jewelry). Hence, none of the other proposed solutions fill in the blank.
