The correct answer to this open question is the following.
Although the question does not include options we can say the following.
That rhythm is the fourth-note rhythm from the opening of the first movement.
This is the section that occurs between the first presentation of the scherzo theme and the first presentation of the trio theme in the third movement. The rhythm played by the brass instruments that should sound familiar to you is the fourth-note rhythm from the opening of the first movement.
We are talking about the Fifth Symphony written by German composer Beethoven. It is considered one of the most renowned pieces of music of all time. It is formally known as the Symphony N.- 5 in "C" minor. Historians think that it was written somewhere between 1804 and 1808. The first time this beautiful symphony was played was in 1808 in Vienna, Austria.