<span>In Spanish, the articles change according to the quantity and gender description of the noun. Unlike English, in Spanish, all nouns like persons,places or things are distinguish according to the gender either it is </span><span>masculine or feminine and the article must change according to the noun that is masculine or feminine and second thing is that either it is singular or plural.</span>
The answer I'd go with is workers. All of the options are involved in the Capitalistic economy, but all resources are privately own which is why workers makes the most sense to me. Hope this helped and sorry for any errors.