What was the most unique feature of the oklahoma state constitution when compared with other state constitutions?

This question is incomplete, here´s the complete question.

What was the most unique feature of the Oklahoma State Constitution when compared with other state constitutions?

It allowed women and blacks to have equal rights.

It provided regulations that supported the working class.

It outlawed unions and organized labor.

It recognized the power of the Socialist Party.

It provided regulations that supported the working class.

Explanation:

When Oklahoma became the 47th state on November 17, 1907, that constitution was the longest governing document worldwide, and the first Constitution in the United States to include regulations aimed to address labor interests.

Most of those regulations came from a coalition of humanitarians and organized labor representatives who had entered politics through the Democratic party between 1906 and 1910.

deists, human beings can know god only via reason and the observation of nature, but not by revelation or by supernatural manifestations (such as miracles