The best description of the effect of Matthew Perry's expedition on Japan is:
B. Perry's arrival in Japan exposed the weaknesses of the Tokugawa shogunate against the threat of a modernized world.
Perry's expedition in 1853-1854 highlighted Japan's isolation and lack of technological advancement compared to Western powers, leading to a reconsideration of the country's foreign relations and ultimately contributing to the decline of the Tokugawa shogunate.