Which industries came under the GPSC's jurisdiction by 1907?

By 1907, the Georgia Public Service Commission (GPSC) was established to regulate certain industries that provided essential services to the public. The correct answer, telecommunications and electric power, reflects the areas where the GPSC was given authority to oversee rates, service quality, and operational compliance. This regulatory framework was crucial as it ensured that the public had access to reliable communication services and electrical power, both of which were becoming increasingly important in the modernizing economy of the time.

The other options do not align with the primary focus of the GPSC during that period. Trucking and shipping, while important, were not under the GPSC's jurisdiction in the same regulatory capacity. Education and healthcare are typically governed by different regulatory bodies and not under the purview of the GPSC. Agriculture and forestry also operate under different regulatory frameworks, emphasizing the vital nature of telecommunications and electric power in the context of public utility regulation.