The answer is A. Permit-required confined space.
It is permit-required as there are hazards that those involved must be aware of before entering so that they can safely enter and work in the said space.
I would say C, schizophrenia,
because schizophrenia is "a mental disorder that in many ways centers around not recognizing what is part of reality – namely, having psychotic breakdowns." It is not related to anxiety, as anxiety is classified as "neurotic" while schizophrenia is classified as "psychotic".
"<span>Bile is important because it helps with the digestion of fat and its transfer from the intestine into the body. When the gallbladder is removed, bile made by the liver can no longer be stored between meals. Instead, the bile flows directly into the intestine anytime the liver produces it."
~</span><span>medicinenet</span>
Answer: it was too small to be seen by optical microscope unlike many bacteria
Explanation:
The disease formerly referred to as Russian flu' before it was later known as the 'Spanish flu' was considered as acts of god in 1918.
It was first thought that the causative agent was Pfeiffers bacillus. Alas, they were wrong. It was caused by VIRUS.
The disease caused the destabilization of social and political orders for decades.
They later cultured the virus from diseased tobacco leaves.
600 calories of foods hope it works!!!