Insko and his colleagues call the level of conflict displayed during intergroup conflict the "discontinuity effect" because

A) such conflicts disrupt relationships so substantially.
B) the abrupt increases and decreases in conflict are not continuous.
C) groups are markedly more competitive than individuals.
D) such conflicts spiral upward so rapidly.

Discontinuity Effect

A phenomenon where intergroup interactions are more competitive or aggressive than interindividual interactions, often due to perceived group boundaries.

Abrupt Increases

Sudden and significant rises in the level, amount, or degree of something.

Competitive

A characteristic of individuals or entities that constantly strive to outperform others to achieve goals or attain superiority.