What impact did systems, cybernetics, communications, and ecological theories have on the development of models of family therapy?

Answer the following four questions, using one page each. Use a heading for each answer instead of re-printing the question for each one. Include a title page and a reference section.
The questions are based on the reading provided in Lesson One called, The History of Family Therapy (2010) by Janice M. Rasheed, Mikal M. Rasheed, and James A. Marley. Sage Publications, pp. 3-44.
1. The Progressive Era, which began in the late 1890s and ended at the start of the Great Depression, was marked by a wide range of social and political reform movements. How might these reform movements be seen as historical precursors to family therapy?
2. What impact did systems, cybernetics, communications, and ecological theories have on the development of models of family therapy?
3. It is suggested that during the social and political climate of social activism of the 1960s a group of iconoclastic and innovative therapists who were staging their own social revolution within the fields of psychiatry, psychology, and social work emerged. Who were these therapists, and what were their contributions to the development of family therapy?
4. As the field of family therapy has moved into the 21st century, what have been the key paradigm and generational shifts in theoretical perspectives?
Each question will be marked out of 3 points. 3 other points will be awarded for proper APA 7th edition and grammar.
In total the reading is 42 pages- please confirm you have received each page and read each page to finish the questions.