Which of the following is a right that only us citizens have?

Right to vote

Explanation:

Out of the options given, the right to vote is the right that only US citizens have. In order to vote in elections, you have to be a US citizen, either by birth or by naturalization. You also need to meet your state's residency requirements and be at least 18 years of age (although some states might allow 17-years-old to vote in primaries).

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.