The statement that reflects the level of success of the missionaries' efforts in Japan is Missionaries' efforts were restricted by the governments and had little influence in gaining converts.
Explanation
Japan is still a Christian minority nation not because missionaries never tried to gain converts in Japan, but the governments of Japan brutally suppressed missionary activities. The arrival of Portugese Catholics in 1529 led to the spread of Christianity in Japan.
The reigns of Hideyoshi and Tokugawa shogunate are infamous for brutal measures adopted to persecute the missionaries and prevent the spread of Christianity in Japan.
