Answer - Put the Victim on the position of his back and make sure he/she does not move.
Reasoning - Reasoning why the victim probably has to be on his back and reduce movement is because you do not want any internal organs be damage or further cause problems to the victim.
A concussion, as found on Google, is a "temporary unconsciousness caused by a blow to the head.", which means a really hard hit to the head, and then a knock out or a blackout
Some symptoms that are usually associated with a concussion can be but are not limited to: headaches, memory loss (if severe), nausea, vomiting, slurred speech, confusion, and fatigue. There can also be sleep disturbances, sensitivity to any type of change, such as air or light, and disorders of the 5 senses (sound, sight, touch, smell, and taste).
D) Nicotine. Just one thing you need to memorise
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