Select the sentence from the text that gives one reason why park rangers are facing problems. Group of answer choices

In the last century, word spread of Zion National Park's many natural treasures, like the Weeping Rock.

More people traveled to Zion in order to hike, horseback ride, and go canyoneering.

Visitors are straying off the trails to create their own, thereby damaging the vegetation.

Visitors still use the tunnel to travel from Zion to the Grand Canyon or Bryce Canyon.