Answer:
C. The credit for the decorations is all hers'.
Explanation:
The correct possessive pronoun would be hers.
You don't need the apostrophe (') with possessive pronouns.
The correct answer is The strings are always making new sounds.
The comparison in this poem between people and lyres shows many aspects of humanity and how fragile is our existence.
More importantly, it talks about how people can create, the sounds of the lyres are all the things people can do and how all of them can be totally different and interesting.
For any one in the future who needs this,
It gives general examples of brain benefits linked to musical training.
Recent brain research has shown some surprising benefits as a result of formal musical training. Learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. The studies indicate that the earlier a child begins training, the more benefits there are. One such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. Scientists believe there is mounting evidence to show that early musical training can improve brain function.
Smug is the answer. Gloat means to celebrate one's misfortune with smugness. Hope this helps :)