Answer:
Life insurance.
Step-by-step explanation:
A life insurance policy can be defined as a contract between a policyholder and an insurer, in which the insurer agrees to pay an amount of money to a specific beneficiary either upon the death of the insured person (decedent) or after a set period of time.
All of the following assets such as home, boat, vehicle require a title as proof of ownership, except a life insurance because no one person can present a proof to attest to the ownership of their life.
Simply stated, a life of an individual is abstract and as such can not be quantified or qualified by any document as a proof to be presented to another person or business entity. Thus, a life insurance cannot be used as a collateral to obtain credits or loans from a financial institution or investors.