According to Mercer's Index of "world's most liveable cities", which city topped the index?

Options

A. New York
B. Paris
C. London
D. Vienna

Answer

To solve the question about which city topped Mercer's Index of the "world's most liveable cities," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the city that ranks highest in Mercer's Index of the world's most livable cities.

2. **Know What Mercer's Index Is**: Mercer's Index ranks cities based on the quality of life for employees who are sent to work abroad. It evaluates various factors that contribute to the livability of a city.

3. **Review the Options Provided**: The options given are New York, Paris, London, and Vienna.

4. **Identify the Top City**: According to the latest available information, Vienna is recognized as the city that topped Mercer's Index for the world's most livable cities.

5. **Select the Correct Answer**: Based on the information, the correct answer is Vienna, which corresponds to option number four.

### Final Answer:
The city that topped Mercer's Index of the "world's most livable cities" is **Vienna**.

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