What is the primary advantage of using localStorage in HTML5 over cookies?

The main advantage of using localStorage in HTML5 over cookies is its capacity to store significantly more data. localStorage allows up to 5-10MB of data to be stored per domain, depending on the browser, whereas cookies are limited to around 4KB. This large difference in storage capacity makes localStorage more suitable for web applications that need to store substantial amounts of data on the client side, like user preferences, tokens, or temporary state data. Moreover, localStorage persists even after the browser is closed, making it ideal for applications that require data to be retained between sessions. Why Other Options Are Wrong: B) localStorage data is sent to the server with every HTTP request: This is incorrect because localStorage data remains on the client side and is not automatically sent with every request, unlike cookies, which are included in HTTP headers. C) localStorage data is deleted when the browser is closed: This is incorrect because localStorage is designed to persist across browser sessions. The data remains even when the browser is closed unless explicitly cleared by the user or through code. D) localStorage data can only be accessed by JavaScript running on the client side: While it is true that localStorage can only be accessed by client-side JavaScript, this is not the primary advantage over cookies, making this answer incorrect. E) localStorage supports expiration dates for stored data: This is incorrect because localStorage does not support expiration dates. Data stored in localStorage will persist indefinitely unless manually deleted.