Respuesta :
C. Other minorities began to play professional baseball. edge 2021
An immediate effect that the Jackie Robinson's joining the Major League Baseball was that other minorities began to play professional baseball.
Who is Jackie Robinson?
Jackie Robinson is the first African-American player to participate in the Major League Baseball.
Thus, immediate effect of his participation was that other minorities began to play professional baseball.
Therefore, the Option B is correct.
Read more about Jackie Robinson
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