For everyone, there's a hardship for leaving the US, so unless your country is under attack, don't check this option.
If you intend to check the divorce box, then you must provide atleast the divorce complaint, and you will be required to submit the final divorce decree at some point. Most likely your waiver will not be pproved until you provide them your divorce decree, even if you established enough evidence for abuse.
If you think the abuse evidence is good enough, then it should be enough. It's totally up to you, but don't think you'll have a higher chance of approval the more boxes you check. It's only gonna increase the burden of evidence on you.