Final answer:
The public sphere of space is not determined by a specific measurement.
Step-by-step explanation:
The statement in the multiple-choice question, 'The public sphere of space is fifty feet or more,' is false.
The term 'public sphere' refers to a concept in social studies that deals with the domain of social life where public opinion is formed and public action takes place. It is not related to physical space or measurement.
Therefore, the answer to the question is 'False' as the public sphere of space is not determined by a specific measurement.
Learn more about Public Sphere in Social Studies