Why Is the Diagnosis of Delayed PTSD a Controversial One

Why is the diagnosis of delayed PTSD a controversial one?

A) It is so commonly diagnosed that it is probably an example of a normal reaction.
B) Publicity and potential disability payments may have increased false claims of this disorder.
C) Combat veterans rarely report delayed PTDS while civilians often report it.
D) People that report delayed symptoms often have serious psychological disorders and are usually out of touch with reality.