Question 1: I would say it is an assonance (a vowel rhyme in the sounds of words or syllables between their consonants). In this line the dominant sound is “Sa” which is repeated in the initial syllables of the words , Santi, Sound and Science. Therefore the correct answer is C. Assonance.
Question 2: it could not be a personification since an animal can also howl as much as a person. It is then a metaphor as the wind does not “howl” per see. The noise is produces by the strong speed of the wind and it come in contact with a solid surface that make it vibrate, creating sound. The correct answer is therefore C. Metaphor.
Question 3: The answer is definitely an idiom which means to encourage a person before a public performance. It is based on the superstition that to wish someone “good luck” has actually the opposite effect and thus, wishing someone something negative as breaking his own leg will actually have the opposite, positive effect. The answer is C. Idiom.
