Final answer:
Trevor's father's motivations to move are not detailed in the provided passage, which focuses on the historical reasons African Americans had for migrating north during the Great Migration, primarily for educational opportunities and personal freedoms.
Step-by-step explanation:
The question posed is regarding the reason behind Trevor's biological father's decision to move. The passage provided, however, does not directly answer this fictional character's situation but gives insight into historical migration patterns, specifically during the Great Migration.
This period saw African Americans move to the North for non-economic gains, including better educational opportunities and greater personal freedoms. These gains were critical factors in the decision to relocate despite ongoing economic challenges.
Instead of focusing on the specific options given for Trevor's father, the passage highlights general motivations for migration during a significant historical event.