Read the following context and choose the best option to answer the question.
Context: At one point , we ran into a couple coming down from the glacier who were from Lubbock , TX . They saw Pat 's UT shirt and gave us the hook ' em horns sign . We started talking and they told us how great it was at the glacier .
Question: What is the narrator , their friend and the stranger bonding over ?
Options: 
- None of the above choices .
 - A university .
 - Scaling a glacier .
 - An interest in longhorn beef .


A university .