Question

Identify the sentence which contains a subordinating connection.

After a brief stop at the rest area, we continued our drive on the interstate.
Although the stop was short, we were thankful for time to stretch our legs during a quick walk around the park.
The rest stop had an area for picnic tables, and we decided that next time we would bring a picnic lunch for our return trip.
As a result, we bought a cooler and made sandwiches for our trip back home.