Which sentence below correctly uses apostrophes to show ownership or a relationship?

Weary travelers have been stopping to soak their bones in Arkansas’s hot springs for thousands of years.


Weary travelers have been stopping to soak their bones in Arkansa’s hot springs for thousands of years.


Weary traveler’s have been stopping to soak their bones in Arkansas’ hot springs for thousands of years.


Weary travelers have been stopping to soak their bones in Arkansas hot spring’s for thousands of years.