I believe it's 3, parenthetical expression
The 2017 Las Vegas shooting was a mass shooting on the night of October 1, when a gunman opened fire on a crowd of concertgoers at the Route 91 Harvest music festival on the Las Vegas Strip in Nevada.
Are you asking about our confession or is this a passage ?
(not meaning to take points, i'm sorry, just not sure ?)
The words that best reflect Lincoln’s formal diction are the ones in the second option: brought forth.
To bring forth means to cause something to happen or be seen or known. The phrase is usually used in formal contexts or in literature.
All of the other options have words that are not considered formal and can be considered of every-day use.