She gave Mikado the elixir of life, as she couldn't bear to hear of his death and was hoping to meet him again so they could have a good life together. Her adoptive parents already had a good life together and that's why they didn't receive the elixir.
We can arrive at this answer because:
Mikado was the lover of Lady Beaming Bright.
They didn't live their romance as they wanted, but they loved each other a lot and wanted to have a good life together.
Lady Beaming Bright's adoptive parents had this chance and could live in love with each other for years to come.
However, she and Mikado were not so lucky, especially when supernatural selves took her to a distant realm, from which she would not return.
Hoping to see her lover again, Lady Beaming Bright gives Mikado the elixir of life so that he can stay alive and they can live together one day.
This tale shows how a divine being in love can try to change the nature of people so that they can achieve their goals.
The correct answer is option A "even the ice hard heart of hades melted". Hyperbole is a literary figure that uses exaggeration in order to add emphasizes to a statement. Hyperboles are not meant to be taken literally, in this example the heart of Hades did not melted literally but this phrase was used to add emphasizes to the situation.
