Shays' Rebellion is the name given to a series of protests in 1786 and 1787 by American farmers against state and local enforcement of tax collections and judgments for debt.
Answer: Ob
After world war 1 was 1914-1918
woman got the right to vote in 1920
spanish-American war was in 1989
civil war was in 1861-1865
Ensuring the uninterrupted flow of information' describes Redundancy and Resilience.
Redundancy can be explained as the arrangement of duplicate devices in critical areas in case the primary device fails.
Resilience is, by definition, the ability to recover and restore to normal functioning after a failure.
In order for resilience to exist, there has to be redundant systems. The use of these two principles is what ensures the uninterrupted flow of information.
Your best answer is c probably.sorry if I got it wrong