A-rank
From Narutopedia
A-Rank is one of the six classifications. It is preceded by B-Rank and followed by S-Class. It is typically used when classifying jutsu intended for ninja of the Kage and Jonin level. A-Rank jutsu are often very useful, but need extensive training before they can be mastered. Some A-Rank jutsu also pose a risk to the user, resulting in their classification as kinjutsu.
There are also A-Rank missions. These missions relate to what is in a village or country's personal interests and are extremely difficult or dangerous to compete, usually assigned to Jonin. In Part I, Naruto Uzumaki, Sakura Haruno, and Shikamaru Nara are given the A-Rank task of stopping Sasuke Uchiha from pursuing Gaara. A-rank missions pay between 150,000 and 1,000,000 ryō.
