Identify the title of the listening example

a. Aria from Don Giovanni: “Notte e giorno faticar” (“On the go from morn ‘til night”)
b. Trio from Don Giovanni: “Ah, soccorso! son tradito” (“Ah, I’m wounded, betrayed”)
c. Recitative from Don Giovanni: “Alfin siam liberati, Zerlina gentil” (“At last, gentle Zerlina”)
d. Aria from Don Giovanni: “Là ci darem la mano” (Give me your hand, o fairest,”)
e. Aria from The Marriage of Figaro: “Se vuol ballare,” (“If you want to dance”)

ANSWER: a