Help in DS 160 for visitor visa

[enkpro]

Hi,

I am sponsoring visitor visa for my in-laws. I have few questions while filing DS 160.

1. in travel information which visa type we need to select. B1/B2 and B2 description is almost same.
2. I am paying the trip for my in-laws and in the relationship i could not find like son-in-law. Can i just use 'OTHER RELATIVE'?
3. in US point of contact i have give my name. in organization do i need to give my company name or 'Do not know'?
4. And in the relation ship can i use 'RELATIVE'
5. in Family information immediate relatives, I see only option CHILD not son-in-law. So one entry is fine there?

Thanks in advance. your response is greatly appreciated.

[enkpro]

I have gone through DS 160 guide but there also not clear about the visitor visa type whether it will be B1/B2 or B2 only for parents.
I called the stanley customer support their answers also not consistant. Please help me