Final answer:
Ukraine's President Volodymyr Zelensky addressed the United States Congress. Germany was the first to introduce health insurance for workers, and Australia controlled German New Guinea after WWI.
Step-by-step explanation:
Ukraine's President Volodymyr Zelensky recently addressed the United States Congress. Therefore, the answer to the question is b) USA.
To provide additional context to similar questions:
- Germany was the first country to provide health insurance for workers, making the answer to that question b) Germany.
- After World War I, German New Guinea came under the control of Australia, thus the answer to which country controlled German New Guinea after World War I is b) Australia.