I would go with 1, but change "imaginations" to the singular.
The other 2 don't mean much to me.
Student or Learner
Is there a difference between these sentences in meaning?
A) She often lives in her imaginations.
B) She often lives on her imaginations.
C) She often lives beyond her imaginations.
Please help. Thanks.
Welcome to the forum.
Presumably, in your title you meant to write "prepositions". Check your spelling before you post.
I agree with all of Mike's points.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.