# option (10-option.com) An option is a choice among several possibilities. People say it when they want to know what alternatives are available, or when they want to select one thing instead of another. ## What a model may hear - command-line flag (Unix/Linux shell and CLI tools): Treat the word as a prefixed argument like -o or --option, and expect syntax such as key=value pairs or boolean toggles - financial derivative (finance, trading, and quantitative analysis): Assume the user wants pricing, Greeks, expiration dates, strike prices, or Black-Scholes calculations - HTML form element (web development): Interpret it as a