The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
What John Lewis meant when he says he focused on
"bringing down those signs" was that he wanted to end with those segregationist signs, attitudes, and prohibitions that oppressed and hurt African Americans in the south.
His story about listening to Dr. King talks about activism in Montgomery help me understand his main goals in that I realize that he, as a civil rights leader in the 1960s, had a good intention in his mind. He wanted respect for the civil rights of the African American people. He wanted to put a stop to the oppression of the government and police brutality. That is why he decided to participate in important protests such as the March to Selma, Alabama, on March 7, 1965. That protest was immediately stopped by the police using force.
John Lewis said that "Bringing down those signs" because he wanted to make an emphasis on ending the attitude of hate and discrimination for African Americans.
He is known for his contribution in Civil Rights Movement in 1960s. He began his activist career with Nashville Student Movement, where he protested against the segregation policy in private Schools.
His objective was to give equal status to the African Americans. Thus he said his famous quote "Bringing down those signs", it means he wanted to get rid of all those signs and symbols which creates an atmosphere of discrimination, and prejudice.
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