Step 1: Understand the phrase 'window to the world'.
English is often referred to as a "window to the world" because of its widespread use as a global language for communication, business, science, and education.
Step 2: Analyze the options.
- (A) Hindi: Incorrect. Hindi is a widely spoken language, but it is not commonly referred to as a "window to the world."
- (B) English: Correct. English is often called a "window to the world" due to its international reach.
- (C) Urdu: Incorrect. While Urdu is an important language, it is not considered a "window to the world."
- (D) Chinese: Incorrect. While Chinese is a major language, English is more widely recognized as a global lingua franca.
Step 3: Conclusion.
The correct answer is English.