There are also differences between American-style and European-style options. With American-style options, the holder (aka the buyer) can exercise the option at any time before the expiration date ...

This so-called assignment notice has to be given to the seller before the time that the option expires on its expiration date for European style options. American style options can be exercised at ...

Yes, you generally can exit an options trade at any time before the contract expires for American-style options. This can mean selling the option back to the market if you're the buyer and it's ...