Student or Learner
After she completes the form, ___ will be processed by Jason.
1) that 2) it
If I don't use comma after the word 'form', I can use 'that'. But if I use comma, can I use 'that' instead of 'it'? One reference said that it will be wrong if I use 'that' instead of 'it' when comma is used. I don't understand why it will be wrong?