Iambic pentameter is a type of verse meaning that there are 5 feet each accented according to a pattern and is used in creating poetry. Prose however is written in a standard textual form without any meter or rhyme.
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The “Age of Knights” ended with the development of a weapon that was first used at the Battles of Crecy, Poitiers, and Agincourt. This military innovation was the longbow.
This weapon was a long curved arc in the form of a "D." It was used by the knights in battles such as Crecy, Poitiers, and Agincourt. Other weapons were used in those armed confrontations as was the case of poleaxes, lances, and different kinds of swords.
We are talking about the turbulent years of the Hundred Years War that started in 1337 and ended in 1453. The War was confronted by Great Britain vs. France. The British won the war.
The printing press invented the future, it was the inspiration for devices like the type writer and the key board. Plus the printing press is the reason the production of the bible had a mass spike in production, thus also shaping the future.
I hope this helps.