Which of the Following Is True About the Frequency and Effects

Which of the following is true about the frequency and effects of traumatic events?

A) They are somewhat common, but because there is no psychological response to most traumas, it goes unreported.
B) They are very rare, and healthy individuals will recover quickly from them.
C) They are somewhat common and may lead to problems like insomnia or poor academic performance.
D) They are relatively unusual, but always result in flashbacks.