Question

soldiers who are stationed far from home can vote using which of the following?
○ an absentee ballot
○ a proxy
○ their computers
○ a secret ballot

Explanation:

An absentee ballot is used by individuals who are unable to be present at their polling place, such as soldiers stationed far from home. A proxy is someone authorized to act for another, not a voting method here. Voting via computers isn't the standard method for soldiers away, and a secret ballot refers to the privacy of voting, not the method for being absent.

Answer:

an absentee ballot