Which type of state law is based on rules, orders, and regulations made by federal, state, or local executive officers?
a. administrative
b. constitutional
c. statutory
d. common

Common law is the type of state law is based on rules, orders, and regulations made by federal, state, or local executive officers.
For the purpose of this discussion, a judge is known as a federal, state or local executive officer.  
Common law is developed by judges when they rule on matters that appear before them in the courts of  each state in the USA.  When judges rule on a matter, they are forced to take previous rulings into account. 

It taught people how to live a good life, but not what to believe.