/ˈɒpʃən/ – Noun
Definition: Lựa chọn.
A more thorough explanation: 1. a choice you can make from a set of possibilities, or the freedom to make a choice
2. the right to be able to demand payment of a contract on any day within a specified time
Example: 1. What other options are available?
2. Payment is due in full upon exercise of our option.