In client side web scripting, what is the correct JavaScript syntax to write the text Hello World into the current HTML document?

Introduction / Context:
This question checks basic familiarity with JavaScript syntax and the difference between JavaScript and other programming languages. Beginners often confuse JavaScript syntax with that of Java or server side languages. A very common example in tutorials is writing Hello World into the web page using JavaScript. Knowing the correct syntax helps confirm that you understand the context in which the code runs and the correct object and method names.

Given Data / Assumptions:

• The environment is client side JavaScript running in a browser.
• We want to output the text Hello World to the HTML document.
• The method must be valid JavaScript, not Java or other language syntax.

Concept / Approach:
In JavaScript, the global document object represents the current HTML document. The document.write method can output a string directly into the document stream. The correct call uses the method name on the document object and passes the text in quotes. System.out.println is a Java method used in console applications, println alone is not defined by default in JavaScript and response.write is associated with some server side environments, not client side scripts. Therefore, the correct answer uses document.write with the desired string.

Step-by-Step Solution:
Step 1: Identify that we are working with JavaScript in a browser, not with Java or ASP.Step 2: Recall that document.write("Hello World"); is a textbook example of writing to the page in JavaScript.Step 3: Option C matches this syntax exactly, using the document object and write method with the string argument.Step 4: Option A is Java syntax for printing to the console, not JavaScript.Step 5: Option B is incomplete and does not refer to any defined function, and option D relates to server side scripting, so option C is correct.

Verification / Alternative check:
If you include a script tag in an HTML page and write document.write("Hello World"); inside it, loading the page in a browser will display Hello World at the point where the script executes. Trying System.out.println in the same context raises an error because System is not defined in JavaScript. This direct experiment confirms that document.write is the correct method to use in this simple example.

Why Other Options Are Wrong:
Option A belongs to the Java language, not JavaScript, even though their names are similar. Option B omits the object that owns the method and is not standard JavaScript. Option D corresponds to response.write in some server side technologies such as classic ASP, which are executed on the server, not in the browser.

Common Pitfalls:
A very common mistake is to confuse Java with JavaScript because of the similar names. Another pitfall is to assume that functions like println are globally available, which is not true in JavaScript. While document.write is rarely used in modern applications for dynamic updates, it remains a simple teaching example and often appears in introductory interview questions.

Final Answer:
document.write("Hello World");