Final answer:
Davey's family struggles financially, and his work as a newsie is crucial for their survival, which motivates his involvement in the fight for fair wages and working conditions.
Step-by-step explanation:
Davey's family situation relates to his involvement in the newsies' fight as b) Davey's family struggles, and his work as a newsie is essential for their survival. The depiction of Davey's circumstances highlights the struggles that many working-class families face, including contributing financially to the family, laboring in poor study environments, and lacking adequate support at home. His involvement in the newsies' cause is driven by the economic necessity to provide for his family and the inequality faced by the working class, as exemplified by the need for fair wages and working conditions.