The struggle or clash would be the conflict(C) because conflict is a disagreement or a clash of ideas.
Answer:
the physical and mental illnesses suffered by immigrants.
Explanation:
The second doctor watched for contagious and infectious diseases. He looked especially for infections of the scalp and at the eyelids for symptoms of trachoma, a blinding disease.
Since trachoma caused more than half of all medical detentions, this doctor was greatly feared. He stood directly in the immigrant's path. With a swift movement, he would grab the immigrant's eyelid, pull it up, and peer beneath it. If all was well, the immigrant was passed on.
The above excerpt and the one in the above question was just to describe the physical and mental illnesses suffered by immigrants.
