Randolph is proposing to solve the racial tensions in the United States through

A.
class-based solidarity.

B.
scientific management.

C.
revolutionary violence.

D.
increased labor output.

A. class-based solidarity.

To answer this question, we need to analyze the options and understand the concept of racial tensions in the United States.

Option A suggests class-based solidarity as a solution. This approach focuses on addressing racial tensions by promoting unity among people of different races based on their shared economic interests and social class. It aims to build a common bond among individuals based on their socioeconomic status rather than their race.

Option B proposes scientific management as a solution. Scientific management refers to the application of scientific principles to enhance the efficiency and productivity of labor. While it is not directly related to racial tensions, it can indirectly contribute to improving race relations by creating fair and equal work environments that eliminate discrimination and support inclusion.

Option C suggests revolutionary violence as a solution. This approach advocates for a violent uprising to bring about radical social and political change. While it is a drastic and extreme option, it does not necessarily address racial tensions directly and can potentially lead to further violence and division.

Option D proposes increased labor output as a solution. This approach focuses on improving productivity and output in the labor force. While it may have economic benefits, it does not directly address the underlying racial tensions in the United States.

Based on the options provided, the most appropriate answer for Randolph's proposed solution to racial tensions in the United States would be option A, class-based solidarity. This approach aims to unite people based on their shared socioeconomic interests rather than their race, potentially contributing to improving race relations.

The answer is A. class-based solidarity.