which of these groups protected the livelihood of craftspeople in the 1800s?\nguilds\nlabor…

Brief Explanations:

In the 1800s, labor unions and trade - unions (which are a type of labor union) emerged to protect the rights and livelihoods of workers including craftspeople. Guilds were more prominent in the medieval period, and scabs are workers who cross picket lines during strikes, not protectors of livelihoods.

Answer:

B. labor unions, D. trade unions