The correct option is, (4) Difference.
Definition of fill in the blanks:
To fill in vacant spots with information, to fill in the gaps in knowledge Please fill in the gaps on the questionnaire. figuratively speaking The narrator returns at the end of the film to fill in (all) the gaps.
The university professor produced some figures showing the difference of severe violations of traffic rules both before and after the new regulations.
Learn more about fill in the blanks here, https://brainly.com/question/524764
#SPJ2
