我是美国公民。两年前用I-130表为妹妹申请美国移民, 妹妹为beneficiary。她的丈夫和孩子也填在I-130表上了，为derivative beneficiaries.
现在，妹妹的丈夫和孩子准备填DS-160表，申请来美旅游签证B2. DS-160表上有如下问题：
"Has anyone ever filed an immigrant petetion on your behalf with the United States Citizenship and Immigration Services?"
对这个问题的回答，妹妹的丈夫和孩子应该填YES? 或者NO呢？
-Only your sister needs to say "Yes", and her spouse and kids just say "No".
敬等您的回答，再次感谢！
