What is a$$ "future"?

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Part $1$

A$.$

It is a contract in which one party commits up front to buy or sell something at a defined price at a defined future date.

B$.$

It is a contract that gives the$$ right, but not the$$ obligation, to buy a share at a specified price over a specified period of time.

C$.$

It is a contract in which two parties agree to exchange cash flows$($e$.$g$.$ interest cash$$ flows$).$

D$.$

It is a contract in which one party commits up front to buy or sell commonly traded items at a defined price and maturity date.