Which of the following country's had highest soft power index in 2022  A. India  B. China  C. Brazil  D. USA

To answer this question, we need to look at the Soft Power Index rankings for the year 2022. The Soft Power Index is a measure of a country's ability to influence others through attraction and persuasion rather than coercion or force.

As of my knowledge up to 2021, I don't have the exact data for 2022. However, as per the 2021 Soft Power Index, the United States was ranked first.

For the most accurate answer, you should refer to the latest Soft Power Index report for 2022, which should be available on the website of the agency that publishes it, usually a think tank or research institution specializing in international relations.