In Turner Et Al

In Turner et al.'s (1992) study of automobile production workers, which of the following was found?

A) Low-cohesive groups made better decisions than high-cohesive groups when threat levels were low.
B) High-cohesive groups made better decisions than low-cohesive groups when threat levels were high.
C) High-cohesive groups made better decisions than low-cohesive groups when threat levels were low.
D) None of these.