According to Marx,why Were the Proletariat Unable to Develop a Political

According to Marx,why were the proletariat unable to develop a political awareness of their class position while the bourgeoisie were able to do so?

A) The proletariat lacked interest or motivation to do so while the bourgeoisie were well connected politically and had a reason to exploit their class position.
B) The proletariat were continually occupied with the struggle to make ends meet while the bourgeoisie simply sat back and enjoyed life.
C) The proletariat had lower intellect than the bourgeoisie.
D) The proletariat were entirely accepting of their position in society and recognized that class division is innate in a society.