Step 1: Understanding the Concept:
The question asks to arrange the given web browsers and a web portal (Yahoo) in chronological order based on their initial launch dates.
Step 2: Detailed Explanation:
Let's determine the launch year for each technological development:
- (B) Yahoo: Founded in January 1994. Although it started as a web directory, it was a major early technological development on the World Wide Web.
- (D) Internet Explorer: Version 1.0 was released in August 1995.
- (C) Mozilla Firefox: First released as "Phoenix" in September 2002, and later renamed to Firefox in 2004.
- (A) Google Chrome: Launched in September 2008.
Arranging them in chronological order:
1. Yahoo (1994)
2. Internet Explorer (1995)
3. Mozilla Firefox (2002/2004)
4. Google Chrome (2008)
The correct sequence is (B), (D), (C), (A).
Step 3: Final Answer:
The chronological order of launch is Yahoo, Internet Explorer, Mozilla Firefox, and Google Chrome. This sequence matches option (2).