Answer:
A. A claim new islands in the pacific
Step-by-step explanation:
The Act was enacted in August 18, 1856. At that time, many of the islands in Caribbean/pacific territories were not affiliated with any government.
The act allowed citizens of United States to claim any lands within these regions that contain Guano deposits.
This made a lot of weapon and agricultural producers claimed new islands in the pacific since Guana can be used as a material for gun powders and soil fertilizer.