La vs sa for body parts

Question

In the summary translation at the end of the exercise, you propose 'elle ne cachait plus sa bouche' as opposed to 'la' bouche previously in Kwizbot's answer. Is this difference sometimes a matter of personal preference?

Accepted Answer

Hi Jack,
There are two possible answers -
elle ne se cachait plus la bouche
or 
elle ne cachait plus sa bouche 
and both are accepted.
Take a look at the following lesson for more information -
Using le, la, les with body parts and clothing (definite articles)
Hope this helps!

Answer

https://progress.lawlessfrench.com/questions/view/confused-on-another-site-i-learned-that-personal-pronouns-are-not-used-with-body-parts-ie-les-pieds#Answer-9561

Hi Jack,

Have look at the link -- it may help you?

Bonne journée

Jim