Final answer:
The correct syntax to show rendered results depends on the technology in use; for Node.js and Express.js, 'res.render()' is commonly used.
Step-by-step explanation:
The question pertains to rendering results in a particular programming or scripting context. The correct syntax to show the rendered results among the provided options would depend on the specific technology or framework being used. For instance, Option 3: res.render() is commonly used in Node.js with the Express.js framework to render a view template and send the rendered HTML string to the client. Therefore, if this is the context, Option 3 would be the correct choice. However, it's essential to understand the technology stack in use to determine the accurate method for displaying rendered results.