A. It can strike down laws that are unconstitutional. The judicial branch studies and interprets the law and constitution to figure out what they mean. They can determine if a law contradicts the constitution.
It checks the legislative branch by reviewing laws for constitutionality. Any law is subject to challenge on the grounds that it violates rights ensured under the US Constitution.
A. True. Scribes originally came into use for making "receipts" of business trades, and math, science, business and literature were all skills they needed to know.