The open systems model of OB assumes that Option a) organizations exist in a vacuum.
Open systems theory is known to be a term that connote the idea that organizations are said to be strongly affected by their environment. It is one that tends to exist in its own way.
Note that an open system tends to pass both energy and matter with those of its surroundings and as such, based on the above, the open systems model of OB assumes that Option a) organizations exist in a vacuum.
Learn more about open systems model from
https://brainly.com/question/22709418
#SPJ1