Answer:
To express that the author's 'Muse' (or inspiration) is gone
Explanation:
"Where art thou, Muse, that thou forget'st so long
To speak of that which gives thee all thy might?
Spend'st thou thy fury on some worthless song,
Darkening thy power to lend base subjects light?"
I can sorta guess that this is asking something like "Where are you Muse, did you forget about me for so long?"
The first word in the sentence is a pronoun- not an adjective.
The second option - Australian is in fact an adjective, it gives some information about the terrier.
the second option - children - is a noun, so it is not an adjective.
And the last option is a verb,
So the correct answer is B - this is the only adjective.
Our answer is B hope that helps!