The correct answer to this open question is the following.
Although there are no options attached or context, we can say the following.
In the State of the Union Address, the United States President informs Congress and the American people of the state of the country and the projects carried out by the government over the past year.
The State of the Union address is included in the US Constitution. You can look for it in Article II, Section 3, Clause 1.
It started in 1790 in the form of an annual message from the President to inform about the situation of the country. In 1942, President Franklin D. Roosevelt changed the name to "state of the union." Its actual name started to be used in 1947.