The correct answer is:
D. samurai served the landholding daimyo and they hoped to prove their loyalty through military service and other roles.
In feudal Japan, samurai were the warrior class who served the daimyo (feudal lords) in exchange for land and protection. Their role encompassed not only military duties but also administrative and bureaucratic responsibilities within the domains of their daimyo. Loyalty and service were key aspects of the samurai code, known as bushido.