Answer:
The correct answer is C: selenium
Step-by-step explanation:
When selenium is taken too much over a period of time, it leads to what is called selenosis, which results to loss of hair, loss of nails, fatigue, irritability, nausea, and damage to some nerves in the body. Apart from these symptoms, there are other symptoms of overdose of selenium which may include garlic-scent-breath and a metallic taste in the mouth.