The primary role of a Jonin is to train junior ninjas, oversee missions, and gather intelligence for their village, making them vital in guiding lower-ranked ninjas. Therefore, the best answer is A. Training junior ninjas.
;
A Jonin is a high-ranking ninja responsible for training junior ninjas, overseeing missions, and gathering intelligence for their village. They play a critical role in guiding and developing lower-ranked ninjas. Their leadership ensures that missions are conducted effectively and safely. ;