Sentence 5: In particular,couples planning to marry may lower the chance of divorse by comparing their relationship to thoses of happily married couples.

What correction should be made to this sentence?

1. remove the comma after particular
2. change planning to plan
3. change the spelling to divorse to divorce
4. change comparing to compare
5. replace their with there

3 ?

3 is right. :-)

Awesome thank you ;-)

You're welcome. :-)

Yes, option 3 is correct. The correction that should be made to this sentence is to change "divorse" to "divorce". The correct sentence should be: "In particular, couples planning to marry may lower the chance of divorce by comparing their relationship to those of happily married couples."