Question

why were us businesses upset by spanish reactions to the cuban revolution during the late 1800s? us businesses were afraid they would lose money that they had invested. us businesses thought that prices for goods in cuba would go down. us businesses did not want spain to become stronger economically. us businesses were afraid that cuba would stop trading with them.

Explanation:

During the late 1800s, US businesses had invested money in Cuba (e.g., in sugar plantations, other industries). The Cuban Revolution and Spanish reactions threatened the stability of their investments. If the situation worsened, their invested capital was at risk of being lost. The other options are less accurate: thinking prices would drop isn't a main concern for upsetting them (they'd likely want stable or profitable returns), Spain's economic strength wasn't the primary business concern here, and the fear of Cuba stopping trade is less direct than the fear of losing invested money.

Answer:

US businesses were afraid they would lose money that they had invested.