surnames different (B2)

[immihelp]

i want to invite my relatives to US(both husband and wife),i am dependent and i will send all my husband documents,my doubt is surnames are
different of me and the persons coming to us ,is there any chance of
refusing visa.How they have to prove that they are my relatives.

[immihelp]

That's fine.

You can show your birth certificate to prove who your parents are.