How did carroll, reed, and lazear assist in cuba's progress as a nation?

Carroll, Reed and Lazear assisted in cuban Progress as a nation by providing evidence of the cause of the yellow fever.

Explanation:

First of all Carroll, Reed, and Lazear were U.S. army researches that discovered the causes of the yellow fever.

In the second place, the yellow fever was a disease that haunted the participants of the American-Spanish war. Due to it, a U.S. Army commission was formed, integrated by Carroll, Reed, and Lazear. I which Reed was the head. Carter was a researcher with valuable information about the disease and he provided Lazear the paper to consider it as a good starting point for the solution of the problem. Lazear then programmed a visit to Carlos Finlay an expert in the area and decided to prove their theory.

They carried on the experiments and found out they were right and designed a treatment. However, Lazer got bitten contracted the fever and died later. The survivors then created new facilities and named them after Lazear. This helped cuba to treat  its people under this sickness and to build bridges of cooperation between different professionals and governments.

the correct answer to your question is c the factory goes out of business, causing the workers to lose their jobs.

explanation:

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.