Yo a todas las personas de mi vecindario.

A) sabo

B) sé

C) conozco

D) conoco

c- conozco

Explanation:

it's " yo conozco a todas las personas de mi vecindario "

sabo is wrong, that's usually how the younger kids say and it's the improper way.

conoco is also wrong, doesn't make sense with the sentence.

and se, could but it's technically not right and conozco makes it make more sense

i would have to know what the audios say as well with the question. : /