“Alcaic, classical Greek poetic stanza composed of four lines of varied metrical feet, with five long syllables in the first two lines, four in the third and fourth lines, and an unaccented syllable at the beginning of the first three lines “ not sure if that helps or not
Shark : fish :: koala : bear
At least I think it is because a shark is a fish so I guess a koala is to bear.
I hope I helped :)
I believe it is
B. \[\sqrt{4}\]