D. When traffic signals are timed traffic seems to be less dense.
The Harlem Renaissance was a period of flourishing cultural activity that took place in the New York City district of Harlem between the world wars, that is, from the early 1920s to the early 1930s.
The movement's leading figures were poets, writers, intellectuals and musicians, such as Duke Ellington, Billie Holiday and Josephine Baker, who laid the foundation for their international careers.
The Harlem Renaissance was characterized by a belief that art could have an effect on social ills. The movement was influential in the ongoing African-American rights struggle and contributed to a strengthened self-esteem and identity of blacks in the United States.
Learn more in brainly.com/question/1616739
I believe the answer is: Executive stage
According to schaie, Executive stage refers to the period when people started to develop the need to perform complex responsibilities.
People in this stage tend to be ready for leadership position and usually happen between the age of 35-60.
Demand for professional labor
