What did the 5,000 men involved with the civilian conservation corps (ccc) mainly focus on in oklahoma a wildlife conservation b sites that became the core of the states park system

The correct answer is B:  sites that became the core of the states park system

The Civil Conservation Corps was a group of workers who were recruited from a plan drawn up by Theodore Roosevelt in the framework of the New Deal as part of the strategy to combat the Great Depression.

The work carried out by the CCC laid the foundations of the North American system of National Parks.  

Oklahoma is currently noted for having 50 state parks, six national parks or protected regions, two protected national forests and a network of areas for the preservation and conservation of nature.

The 5,000 men involved with the civilian conservation corps (ccc) mainly focused on:

(B) sites that became the core of the states park system

b]to spread the message of black power

i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.