I would say B.
I hoped I help have a nice day
Answer:
d. to protect against radical shifts in government that result from swift changes in popular opinion
Explanation:
The senate serves to "mediate" and reach proper agreements based on well thought out and thorough proceedings from a handful representative of the people. It works to protect against swift, radical changes in government as it checks and balances other government loopholes that could push for radical changes that may be harmful to the system.
<span>Authoritarian. that's the name of it.</span><span />
Well, you don't have the options, but weapons NOT used until WW1 were..
airplanes
balloons
tanks
Hope it helps! :)