Answer:
pneumoconiosis
Explanation:
Dermatosis is a condition of the skin, either genetic in nature and influenced by environmental conditions such as an initial infection/ contact dermatitis.
Atherosclerosis is a condition described by hardening of the arteries, affecting the heart. This is a chronic condition, caused by environmental factors (diet).
Caisson disease is an acute neurological condition that only occurs in deep sea divers, caused by a gas embolism that blocks a vessel and transportation of oxygen.
The answer would be (C). If more herring emigrate (leave) from the region, then there will be less herring for the sea lions to use as a food source. This could lead to a decrease in the sea lion population.
