Final answer:
The first bill to pass through Oklahoma's congress in 1907 was a segregation law, aligning with the broader trend of Jim Crow laws that institutionalized de jure segregation across the South. (Option C)
Step-by-step explanation:
The first bill to pass through Oklahoma's Congress was a segregation law. The correct answer to the question is C.1907. Oklahoma became a state on November 16, 1907, and one of its early actions as a state legislature was to pass segregation laws. This was a part of a broader trend of Jim Crow laws that were being established across Southern states, institutionalizing a system of de jure segregation that mandated the separation of races in public and private life, effectively upholding the tradition of racial discrimination. Such laws remained in place until the mid-20th century civil rights movement, which worked to dismantle the legal basis for racial segregation, culminating in landmark legislations like the Civil Rights Act of 1964.