How can you create a new directory using the fs module in Node.js? a. fs.makeDirectory() b. fs.createDirectory() c. fs.newDirectory() d. fs.mkdir()

The correct answer is d. fs.mkdir(). Here is how you can create a new directory using the fs module in Node.js:

1. First, you need to include the fs module in your file. You can do this by adding the following line at the top of your file:

var fs = require('fs');

2. Once you have included the fs module, you can use its mkdir function to create a new directory. Here is how you can do it:

fs.mkdir('new_directory', function(err) {
    if (err) {
        console.log(err);
    } else {
        console.log("New directory successfully created.");
    }
});

In this code, 'new_directory' is the name of the new directory you want to create. The function passed as the second argument to mkdir will be called once the directory has been created. If there was an error creating the directory, it will be passed to this function, otherwise, the function will be called with no arguments.