Did you get the answer by any chance?
Answer:
c
Explanation: the indian ocean
b voting
source https://www.law.cornell.edu/constitution/amendmentxv
15th Amendment
Amendment XV
Section 1.
The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude.
Section 2.
The Congress shall have power to enforce this article by appropriate legislation.
Triple Alliance - Germany, Austria-Hungary, and Italy
Triple Entente - France, Russia, and Great Britain.