Eli left his house one afternoon to study at the library. The graph shows his distance, in miles, away from his house as a function of time, in minutes. A graph titled Eli's Trip to the Library. The horizontal axis shows Time (minutes), numbered 0 to 135, and the vertical axis shows Distance from Home (miles) numbered 0 to 5. The line begins at 0, goes up to 4 miles from 30 to 120 minutes, then goes down to 0 miles in 133 minutes.
What could explain what happened when the time was equal to 120 minutes?

Eli arrived at the library.
Eli rode his bicycle home from the library.
Eli rode his bicycle to the store, getting farther away from his house.
Eli continued to study at the library for 13 more minutes.