The only sentence from the list of options that correctly forms the plural of 1990 would be "A. My older brother was born in the 1990's" since an apostrophe is needed.
Answer:
alliteration is the answer
Explanation:
multiple P sounds
Heroic epic often depict exactly this - they have long complex stories that are also very culturally relevant to the culture out of which the hero comes from. They were often created in order to be sung and they also involve supernatural beings etc. which the hero has to overcome and save his people.
No other of the available answer is similar to this.