What quotation most effectively expresses the concept that learning to read and write set Douglas on a path to freedom

A the more i read, the more i was led to abhor and detest my enslavers
B freedom now appeared, to disappear no more
C the reading of these documents enabled me to utter my thoughts, and meet the arguments brought forward to sustain slavery
D that very discontentment which master Hugh had predicted would follow my learning to read had already come