Your instrument, outside of music, is your own voice. If you love yourself and tell the world (using your 'instrument'), then you can feel fulfilled. This advice is good for anyone who feels like they aren't heard or seen, they can use their voice to speak up and create change for themselves and others.
Which word is in italics?
Not sure about number three in regards to the literary movement; however, i can help you with the last two.
"the collars belonging to the cats" -- there are multiple collars, and multiple cats. the way to represent this is "the cats' collars." you add the apostrophe to the cats, because the multiple cats own the collars.
"the notebooks belonging to Janet" -- here, you have multiple notebooks, but only one janet. the way to show this is "Janet's notebooks." the possessive s is added to janet's name to show that the notebooks are hers. the possessive s or apostrophe would not apply to notebooks, because the notebooks don't own anything. only janet owns something.
<span>the words that the appositive renames or further identifies - checks and bonds</span>