When you say "protection from harm system," I assume you mean the Integumentary system. It's job is to protect the body from various kinds of damage. Hope this helped! :)
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According to me, rationalization...
Hope it helps!!!
Answer:
Associative learning. This usually happens when an individual reacts to an stimuli and visual or auditory behavior. It has been proved by many experts that there is a relationship between events that traumatize an individual, concepts and even mental states. The relationship between them and the experiences of the individual would shape weird behaviors that other wise they would not ever manifest.
Obviously D would be one of the answers . The other ones should be B & C .
A lot of stores sell things in “bulk” like in grocery stores it’s more geared to families.