Answer:
Scholars writing about historical events, people, objects, or ideas produce secondary sources because they help explain new or different positions and ideas about primary sources. These secondary sources generally scholarly books, including textbooks, articles, encyclopedias, and anthologies.
Explanation:
I would say B. There is contrast in both grandpas and Maurice’s actions.
Hope that helps. :)
I'm not sure exactly what unit you're referring to, but three of the main factors that affect oil prices today would be natural disasters, futures trading, and global demand.