What are some of the effects of the rising income gap between low- and high-income families? In recent decades: (Select all that apply.) Group of answer choices Gaps in achievement test scores between children from low- and high-income families have risen College graduation rates have fallen for youth from low-income families College graduation rates are higher for students from high- as opposed to low-income families Students from low and high-income families are more likely to have classmates from their economic stratum