Legislation and Court Decisions Affect or Control, to Some Greater

Legislation and court decisions affect or control, to some greater or lesser extent,​

A) who may work, doing what, when, and where.
B) how the work may be done, within what continuous span of time, and for what compensation.
C) Both of the above are correct.
D) None of the above is correct, because in our society the parties are free to contract on any terms of their unique and specialized choice.