Martin Luther King Jr.’s ""I have a dream"" speech during the greatest civil rights demonstration in the nation's history: a) was made shortly after Lyndon Johnson become president b) saw King call for a significant shift in tactics in the quest of civil rights c) was made before a joint session of Congress and the Senate d) was given to commemorate passage of the Voting Rights Act.

b) saw King call for a significant shift in tactics in the quest of civil rights.

Explanation:

The "I have a dream" speech delivered by Martin Luther King was made at a time of great oppression and civil rights deprivation and racial segregation.

As the celebrated orator, Martin Luther King was addressing some 250,000 thousand strong crowd in Washington D. C on August 28, 1963, he was clamouring for an end to oppression for the black man and for blacks and whites to "not be judged by the color of their skin but by the content of their character" and with the dream that one day all races will be able to hold hands as "brothers and sisters".

This was coming when the Civil Rights Bill was debated in Congress.

Other approaches have been earlier adopted, ranging from demonstrations that were met with vicious attacks by dogs, beatings and high powered water hoses.

A planned walk to Washington to protest and demand for desecrated public accommodation, schools amongst others. The walk turned out better than intended and Martin Luther King, Jr delivered his I Have A Dream speech.

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explanation:

the correct answer is:

b) a rich merchant.