What country joined World War I in 1917 after the United States entered the war?
Answer: Romania
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Generate a historical trivia question about the following topic.

### Input:
Topic: World War I

### Response:
What country joined World War I in 1917 after the United States entered the war?
Answer: Romania
assistant

Here's a historical trivia question about World War I:

What was the name of the German spy ring that played a significant role in the assassination of Archduke Franz Ferdinand, the heir to the Austro-Hungarian throne, in 1914, which triggered the outbreak of World War I?

A) The Zimmermann Telegram
B) The Triple Entente Conspiracy
C) The Scheidemann Plot
D) The Blofeld Ring

Please respond with the correct answer.