What Did C

What did C. Wright Mills mean when he said people will feel like they have "suddenly awakened in a house with which they had only supposed themselves to be familiar"?

A) Mills meant that when people use the sociological imagination they will understand that their day-today experiences are their own personal experiences not shared by others in society.
B) Mills meant that when people use the sociological imagination they will understand that their day-today experiences are not purely personal experiences.
C) Mills meant that when people use the sociological imagination they will understand the importance of focusing mainly on their personal social context to make sense of their social problems.
D) Mills meant that when people use the sociological imagination they will understand the importance of changing social relationships and focusing on collective action.