Answer: Postraumatic stress disorder
Explanation: The Postraumatic stress disorder or PTSD is a psychological disorder that occurs when someone goes through a traumatic experience, that experience increases levels of stress resulting in a constant state of awareness, nightmares, avoidance of things/situations that could possibly trigger memories related to the traumatic experience, invasive and unwanted thoughts that produces anguish.
Answer:
B and D are correct.
Explanation:
A is incorrect: Trees cannot live fully immersed in sea water.
C is incorrect: The surfaces are very varied all over the ocean floor.
