question: investment:stocks
choices.label: A B C D
choices.text: real estate:intermediary bank:profit listed company:securities company asset:liability
explanation: "stocks" are a type of "investment". the medium of "real estate" transaction is an "intermediary". the "intermediary" is not a way of "real estate". "banks" produce "profits" through the difference between deposit and loan interest, and "profits" are not a way of "banks". "listed companies" can be "securities companies", and "securities companies" can also be "listed companies". "securities company" is not a way of "listed companies". "liability" is one way of "asset" flow.
relation: stocks investment R2.2
relation: listed company securities company R2.7