Answer:
la conozco
Explanation:
In english we have a verba for knowing someone and somthing, which is Know, in spanish there are two different verbs for knwoing informations and things, and other for knowing people, cities and other things, For example knowing math would be "saber" while knowing the math teacher would be conocer, in this case the correct option would be "La conozco" because it´s a woman of whom we are talking about.
