When being fired upon, which one of the following is not considered cover?

In the context of gunfire and personal safety, "cover" refers to any object or structure that can provide significant protection from bullets. Concrete walls, vehicles, and sandbags typically absorb or deflect bullets, giving individuals some level of security.

Shrubs, while they may provide some concealment, do not effectively stop or deflect bullets due to their material composition and limited density. Therefore, they cannot be relied upon for safety during gunfire, which is why they are not considered adequate cover. This understanding is crucial for individuals in tactical situations to evaluate their surroundings and choose locations that provide the best protection from gunfire.