Answer:
A) sé
Explanation:
Yo sé donde vive.
I know where you live.
Both conozco and sé mean know but they are different. Conozco means to know someone, sé means to know something. In this case, you want to know something so sé applies to this sentence.
I am almost certain it is sois.
C. Paguen
You need to put it in future
You answer by putting past,present,future.