Final answer:
Kewauna may be disappointed that the other African-American girl sat in the back due to the historical context and significance of African-Americans being forced to sit in the back during segregation.
Step-by-step explanation:
Kewauna may be disappointed that the other African-American girl sat in the back due to the historical context and significance of African-Americans being forced to sit in the back during segregation. During the era of racial segregation in the United States, African-Americans were often relegated to the back of buses, designated as 'colored' seating areas. This practice was a stark symbol of racial discrimination and inequality. Therefore, Kewauna's disappointment may stem from the fact that the other African-American girl willingly chose to sit in a spot that historically held negative connotations and represented a lack of agency and choice for African-Americans.