What is the primary role of the president in the Weimar government?

The primary role of the president in the Weimar government was to serve as the head of the state. This position was established under the Weimar Constitution, which defined the president as the highest authority in the government with various responsibilities, including appointing the chancellor, convening the Reichstag (the parliament), and, in some cases, deciding on the use of emergency powers. The president represented the unity of the state and played a crucial role in the political framework, particularly during times of crises or instability that the Weimar Republic frequently faced.

While the other roles mentioned in the options may have specific functions or influences within government, they do not encompass the overarching position and responsibilities that the president held as the head of the state, making this choice the most accurate representation of the president's primary role in the Weimar government.