Bonjour Joan !
You would say - Je la ‘connais’.
The reason is the rule-
1. Connaître - To be used if we need to emphasise on “knowing a person, place, or a noun( used as an object)
2. Savoir - To be used if we emphasise on knowing how an action is being done/ completed ( with the help of a verb)
For example ->
Knowing how to make/ prepare a dish uses “savoir” whereas Knowing the instructions/ recipe of the dish uses “ connaître”.
Hope this helps !
You definitely wouldn't say "Je la sais". I think you probably could say "Je la connais", but if you are afraid that might be misunderstood then you would have to be more specific - e.g. "Je sais qui c'est" = "I know who she is".
You might find this article useful:
Sign in to submit your answer
Don't have an account yet? Join today
Test your French to the CEFR standard