We Tend to Recognize Traumatic or Threatening Situations Very Vividly

We tend to recognize traumatic or threatening situations very vividly. What neuronal mechanisms explain this?

A) when we are in these situations, we have heightened sensory awareness and therefore the loecus coeruleus directly stimulates LTP in the hippocampus
B) behavioral arousal creates neocortical cell assemblies directly, bypassing the hippocampus
C) these situations release gluccocorticoids (stress hormones) , which stimulate the formation of hippocampal cell assemblies
D) the more strongly the input patter of stimulus is, especially with behavioral arousal, the more likely we are to form strong hippocampal cell assemblies