Del Verrocchio was Leonardo Da Vinci's teacher or master artist. He retired because he thinks he could not paint as well as Da Vinci. Though Del Verrocchio, Da Vinci would have been exposed to both theoretical training and vast variety of technical skills.
Answer:
review by the US Supreme Court of the constitutional validity of a legislative act.
Explanation:in other words A
The First Crusade was the only crusade that managed to achieve its goal of recapturing Jerusalem.
