Cilia is found in the trachea, they keep mucous and dirt etc out of the lungs
The answer to your question on which are the most common minerals that can be located in Earth's crust would be B - Feldspar and quartz
In fact, the reason why this is the correct answer is because if you were to dig into the Earth's crust - these two metals are what you would most likely found in a lot of cases.
Do you have a picture so I can match them
So what happens is the immune system gets all messed up making the person's T cells (The ones that protect the immune system) and makes them fight themselves. Soon, the HIV controls everything and it turns into AIDS! :)
Improper hot/cold holding temperatures of potentially hazardous food.
Improper cooking temperatures of food.
Dirty and/or contaminated utensils and equipment.
Poor employee health and hygiene.
Food from unsafe sources.
Hope it helps!