Researchers at Ohio State and Michigan put leader behavior into two broad categories; and . a. Task , Power
b. People , Task
c. Task , Organizational

b. People , Task

Explanation:

Based on the Michigan Leadership Studies that was carried out around 1950s and 1960s which centered on behavioral approaches and identification of leader relationships and group processes. The outcome of the research showed that there are three significant traits of productive leaders which are mainly:

1. Task-oriented behavior

2. Relationship-oriented behavior: this focused on people interaction in and out of the work place.

3. Participative leadership.

Hence, in this case, it can be concluded that "Researchers at Ohio State and Michigan put leader behavior into two broad categories; PEOPLE and TASK.

the specific actions take by the fed. what the fed was attempting to do by taking these actions. the result of the actions taken by the fed

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.