B. Roots
Roots are the smallest meaningful parts of words. For example the root word of aquamarine would be Aqua, which means water. So the root word can also give you a hint on the meaning of the word.
Hope this helps :)
It is an allusion The poem uses Christian imagery regarding the Apocalypse and Second Coming allegorically to describe the atmosphere of post-war Europe.
Mandy failed to beat her final opponent, Even though she practiced karate every day.
commas are necesarry when there is a sequence or list of numbers ex 2, 4, 6, 8, and so on but if it looked like this
2
4
6
8 in a vertical column, there is no need for them