What was the primary issue in the case of Montreal v Quebec?

In the case of Montreal v Quebec, the primary issue revolved around noise regulation in public spaces. This case highlighted the tension between municipal authority to regulate public order and the constitutional rights of individuals, specifically in terms of freedom of expression and assembly. The municipality aimed to impose regulations to manage noise generated by public activities, which included concerns over disturbances in urban areas.

The legal discussion extended to the extent of municipal powers and whether those powers could infringe upon citizens' rights to engage in expressive activities, such as public speaking or demonstrations. The decision also involved considerations of balancing public interest with individual freedoms, underscoring how regulatory measures can be crafted to respect and accommodate both competing interests.

In this context, the other options do not capture the central focus of the case. The subjects of public access to private properties, licensing of public speakers, and use of public transportation represent different legal questions that were not the primary considerations in the Montreal v Quebec case. Therefore, the issue of noise regulation in public spaces is correctly identified as the critical aspect of this legal matter.