The three pairs of concepts that best describe the Roaring 20s are:
1. Innovation and Urbanization: The Roaring 20s was a time of significant technological advancements and innovations, such as the widespread adoption of automobiles, radio, and electricity. Urbanization also played a crucial role during this period, with a notable shift of population from rural to urban areas.
2. Women and Men: The Roaring 20s saw a notable shift in gender roles and expectations. Women experienced greater freedom and independence, gaining the right to vote with the passage of the 19th Amendment in the United States. The decade was marked by the emergence of the "flapper" culture, which challenged traditional gender norms.
3. Immigrants and Minorities: The 1920s was a period of increased immigration to countries like the United States, leading to significant cultural diversity and the growth of minority communities. However, it was also marked by tensions and discrimination against certain immigrant groups and minority populations.
The other two pairs, "capitalism and communism" and "religion and culture," do not specifically align with the major themes and developments of the Roaring 20s and are, therefore, not correct answers in this context.