How do you include a module in a Node.js file?(1 Point)By declaring it as a global variableBy using the import statementBy using the require functionBy copying and pasting the module's code

In Node.js, you include a module by using the require function. Here is a step-by-step guide:

1. First, you need to identify the module you want to include. This could be a built-in module (like 'http' or 'fs'), a third-party module (like 'express' or 'lodash'), or a module you've written yourself.

2. Once you've identified the module, you can include it in your Node.js file by using the require function. The argument to require is a string that specifies the name or path of the module.

3. For example, if you wanted to include the built-in 'http' module, you would write var http = require('http');. If you wanted to include a third-party module like 'express', you would write var express = require('express');. If you wanted to include a module you've written yourself, you would specify the path to the module file, like var myModule = require('./myModule');.

4. Once you've included the module with require, you can use its exports in your code. For example, if your module exports a function called myFunction, you could call it like this: myModule.myFunction();.

5. Remember that the require function is synchronous, which means it blocks execution until the module has been loaded. This is usually not a problem, because modules are cached after the first time they are loaded. However, it's something to keep in mind if you're writing code that needs to be highly responsive.