Respuesta :
Answer:
Look at the answer options, then look through the passage.
Explanation:
Which of the ideas from the answer options has been repeated throughout the passage? That would be your main idea.
Answer:
B
Explanation:
Through my reading of the passage, there really isn't an emphasis on a specific sleeping disorder as each was mentioned and explained. Thus, option B becomes suitable as it relates to the many different types and variety of sleeping disorders.