That disorder would be depression.
There would always be unhappy people in this world.The difference in cultures and countries only differentiate the cause of the depression, not the depression itself. For example, teenagers in Africa may be depressed because they have nothing to feed their belly while teenagers in USA may be depressed because we do not have enough retweets.
I think it must be like this:
braille is a special system of writing and reading for blind people
The answer for your question would be B, working at these mills could lead them to getting badly injured or death
I believe the answer is: <span>convenience sampling
</span><span>convenience sampling refers to the method in collecting data in which the subjects are taken from the group of people that are easily accessible by the researchers.
</span>(since Dr. Rhodes is a professor, his Students could be considered as convenience sampling)
