With the options provided, the answer to the phrase that trade union differed from the labor unions is that trade unions were organized or formed by skilled workers or workers employed in the building while labor unions are group of workers regarding if skilled or not.
I think it would be B i am not 100% sure but lemme know if i helped
Earliest humans to live in Europe were able to survive the last Ice Age period that was a characterized by ferocious change in the climate that covered the continent in a thick layer of ice. Stone age blacksmiths during this period survived through the masterly and use of fire to make tools as a survival strategy while old cultures died and new ones emerged over thousands of years, where the hunter-gatherer populations ebbed and flowed. The hunting of animals and gathering of wild fruit and berries eventually led to adoption of pastoral, farming cultures that arrived in Europe from the Middle East around 8,000 years ago.
