Their government was a Democracy
The Cambrian Explosion resulted in the evolution of the first representatives of most animal phyla. The second option among all the options given in the question is the correct option. The Cambrian Explosion is also known as Cambrian Radiation and it took place around 542 million years ago.
The Menominee Restoration Act was a direct impact due to the effort of Ada Deer. This Act was signed by President Richard Nixon on December 22, 1973. It restored tribal supervision over property and members; it recognized sovereignty to the Menominee Indian Tribe of Wisconsin. This Act also gave American Indian tribes access to federal services. After the signing if this Act, the Menominee Restoration Committee was created which would work as an interim authority and be in charge of the new drafting of tribal constitutions; due to the Menominee Restoration Act, the Termination Act of 1954 was repealed.