The answer is bebida. En inglés Liqueurs son los bajativos, digestivos, o pousse-cafés, términos que se usan en diversos países de habla castellana para referirse a los after-dinner drinks.
because conocer is used more when you personally know someone/thing
saber is used when you know facts about someone or something.
se is conjugated in the yo form
sabes is conjugated in the tu form so this one is correct because you are asking someone if they know where the party is.
El tono, it means tone, in the first sentence it says “aparente de la voz” and conflict isn’t a voice, an argument isn’t a voice, and a character isn’t a voice, so the answer is b, el tono