It's a quarter rest, at the end of that piece.
As stated, when sight reading, look over everything first.
It was an important part of auditions, for going beyond your local school's band/orchestra program, and entrance to a high school music conservatory or summer camps, like Interlochen
It was something you practiced and did at most every hour long lesson.
Most important for auditions, play it correctly, with feeling and expression, even if a bit slower than the given tempo.
When I spent a year, taking weekly lessons on Flute, after almost 20 on single reeds, with a symphony/studio flute/picc only player, most of the lesson, was sight reading duets and orchestra music.
Paying attention to intonation, especially going pianissimo, when trying to keep up, going a bit flat, I was shown how to move the jaw forward a bit, to keep the slower air column, on target.