The most serious confederate threat to the union blockade came from

The most serious threat to the Union blockade came from the Confederate ship: the ironclad Merrimack renamed Virginia.

Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.

Ithink its c) the conditions in the factory have never been questioned by the employee.