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Question: Which of the following is the correct syntax to launch a new instance of the Firefox browser using Selenium WebDriver in Java?

a) WebDriver driver = new FirefoxDriver();
b) WebDriver driver = new ChromeDriver();
c) WebDriver driver = new SafariDriver();
d) WebDriver driver = new EdgeDriver();

Answer: Option a, "WebDriver driver = new FirefoxDriver();", is the correct syntax to launch a new instance of the Firefox browser using Selenium WebDriver in Java.

In this line of code, a new WebDriver object is created using the "FirefoxDriver" class, which is the class used to interact with the Firefox browser.

Once this object is created, it can be used to interact with various elements on the webpage, such as finding and clicking buttons or inputting text into fields.

Option b, "WebDriver driver = new ChromeDriver();", is used to launch a new instance of the Chrome browser.

Option c, "WebDriver driver = new SafariDriver();", is used to launch a new instance of the Safari browser.

Option d, "WebDriver driver = new EdgeDriver();", is used to launch a new instance of the Edge browser.

It's important to note that in order to use any of these browsers with Selenium WebDriver in Java, you must have the corresponding browser driver installed on your machine and added to your system PATH.

These drivers act as intermediaries between the Selenium WebDriver code and the browser itself, allowing the WebDriver to send commands and retrieve data from the browser.