Final answer:
The Commercial Revolution most profoundly impacted the economic and social spheres with the growth of the merchant class, the expansion of towns, and the increase of global trade and wealth.
Step-by-step explanation:
The impact of the Commercial Revolution could be most felt in various realms, but predominantly in the social, trade-related, and economic sectors. The introduction of capitalism, the growth of the banking sector, and the enhancement of global trade networks facilitated the rise of a new merchant class and significantly increased the accumulation of wealth. Towns and cities expanded as populations concentrated in urban areas to engage in specialized trades and production for broader markets. Economies transformed from predominantly agrarian to more complex commercial and industrial systems, leading to profound shifts in social structures and the state's institutional framework. The movement of goods and the establishment of colonies further indicate the extensive economic and social changes linked to this period.