What action led wealthy planters in hawaii to fear that their sales and profits would decrease?

The first option that tells about us tariff being imposed on Hawaiian sugar is the reason behind the fear of wealthy planters in Hawaii .

Explanation:

During 1892 us tariff duty over the imported goods was increased by 50% as per the McKinley tariff act to let the domestic industries and products grow and develop and also decrease the prices of competition in market locally.

And USB in the largest user of Hawaiian sugar, the plant produce sugar fear that their sales would fall down .

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;

it affected it because the kingdoms (with trade) slowly got richer and richer.