The correct is B. Hard work, self-improvement, and patience.
Step-by-step explanation
Booker Washington (1856 - 1915) was a leader of the Afro American community. He stood out for his ideas in which he argued that education was the means for the black community to improve and rise in the socio-economic structure of the United States. Likewise, he considered that the process for Afro Americans to be fully included in society would be slow and would require patience and hard work not only from this community but from the entire society. According to the above, the correct answer is B. Hard work, self-improvement, and patience.