The traditionalist security approaches have the following features: First, they have mostly emphasized the military aspects of security as well as the concepts such as war, defense, strategy, and geopolitics. They have focused on the problem of national security and the nation-state. Second, the traditionalist security approaches mostly choose a narrow or mono-sectoral agenda and attach priority to one sector (military), one actor (the state), and one action (the use of force). Finally, the traditionalist security approaches have a statist perspective, which is based on a scientific and objectivist understanding of knowledge. Therefore, the correct option is C.