Final answer:
The correct answer is option b. Public opinion was divided on racial integration. Based on the newspaper headlines, public opinion on racial integration was divided.
Step-by-step explanation:
From an examination of the newspaper headlines concerning Jackie Robinson in 1947, it can be concluded that public opinion was divided on racial integration. While there was staunch support for integration by socialist journals and organizations, there were also instances of opposition and racial segregation in sports continued.
One headline mentions that Robinson's entry into the Major Leagues was the culmination of decades of protest against the color line in baseball, highlighting the opposition and the need for change. Additionally, the quote from a former Dodger announcer acknowledges that accepting Robinson on the team did not necessarily translate into support for broader issues of racial equality.
Therefore, based on these newspaper headlines and quotes, it can be concluded that public opinion on racial integration, specifically in baseball, was divided during that time.