An Option

An option:

A) is an agreement to trade something in the future, either to buy or to sell a specific amount of a specific asset
B) is an agreement that gives the buyer (holder) of the option the right but not the obligation to buy or sell something in the future at a fixed price
C) is an agreement that gives the holder the right to buy or sell the underlying asset, so, as with all investment assets, the investor wishes to be long if they expect prices to rise and wishes to be short if they expect them to fall
D) none of the above