It's most likely a sign of suppressed agitation and anxiety
Answer:
He wanted to abolish slavery within the natives after he exposed their treatment by other Europeans.
Explanation:
Organized labor, or trade union, is an organisation of workers which has as its aim to fight for and improve the workers' rights. <span>Out of the 4 options only D. National Education Association is an organisation of workers- this is the correct answer. </span>
The other organisations don't work for workers' rights, but instead for environment protection (C), the right to keep arms (A) and B is a media network.