Motif is a reoccurring theme or idea shown with symbolic value, and theme is a general concept that the author wants readers to see. These both help readers understand or grasp a better understanding of plot, so the answer is c.
Because I talked to them about how I felt after I failed my test, they comforted me.
Example: You cried to a friend about a bad grade and they told you about how smart you are. (Not sure if this was too helpful haha)
Answer:
An Important Event in the Author's Life.
Explanation:
This one is the most probable answer. It is describing most likely what happened when they entered the United States of America.