Hey there!
We can assume her falling down the stairs was an accident and technically we can blame Ana for it. If not an accident, say that there was some water leaking from a pipe that went on the stairs or someone was cleaning them and left some hazardous slippery chemicals- that would be a violation of basic workplace standards.
However, our real problem here is Ron. He picks up Ana, and instead of calling someone who could help or seeing if someone else had a first aid kit, he uses a paper towel. The problem with this is that the cut could get infected because the paper towel may have bacteria on it. This is the main violation.
Hope this helps
Answer:
A) Nighttime was approaching.
Explanation:
Nighttime was insinuated, but not bluntly or plainly shown. Implicit means "Implied though not plainly expressed." SO if we look at the passage and the multiple-choice questions we see that B, C, and D, were all plainly expressed. They were given a signal, as well as were "explicit" because they didn't hide any information. The only information we have that "nighttime was approaching" would be that the "sky was getting dark."