In the 1800s, how did trade unions differ from labor unions?

Trade unions represented skilled workers, while labor unions represented unskilled workers.

Trade unions represented unskilled workers, while labor unions represented skilled workers.

Trade unions represented railroad workers, while labor unions represented mill workers.

Trade unions represented mill workers, while labor unions represented railroad workers.

A.

Explanation:

It kinda says in this other guys' answer, but trade unions represent skilled workers, while labor unions represented unskilled workers.

Labor unions are organizations of workers that work together to achieve a goal this includes negotiation with employers to get better working conditions in terms of wages, promotions, benefits, safety, among others. However, a labor union does not train its members or asks new members to develop or have specific skills. On the other hand, trade unions are associations of skilled tradesperson or craftsmen, as labor unions trade unions want to accomplish the interests of their members but opposite to labor unions trade unions train people and all members are skilled. Because of this, what made trade unions different from labor unions is that trade unions members are skilled workers.