我美国公民，给父母申请绿卡，父母在国内。我有几个问题不知道怎么填：
问题1
Security and Background: Medical and Health Information的部分有个疫苗的问题
Do you have documentation to establish that you have received vaccinations in accordance with U.S. law?
Yes or No.
如果选了no, 就会跳出来一个框要解释。
我是应该选yes 还是no呢？我父母七十多了，在国内应该就是小时候被要求打什么就打过什么，不清楚他们有没有记录，这个情况怎么回答这个问题啊？
问题2
Are you a member of or affiliated with the Communist or other totalitarian party?
我爸是共产党员，那是不是就得回答yes. 然后就被要求解释，那如果yes的话，要解释啥呀？填yes的话会影响immigration visa 申请嘛？
问题3
表的最后有个问题Do you want the Social Security Administration to issue a Social Security number and a card?
这个是填yes吧？
谢谢！
问题1
Security and Background: Medical and Health Information的部分有个疫苗的问题
Do you have documentation to establish that you have received vaccinations in accordance with U.S. law?
Yes or No.
如果选了no, 就会跳出来一个框要解释。
我是应该选yes 还是no呢？我父母七十多了，在国内应该就是小时候被要求打什么就打过什么，不清楚他们有没有记录，这个情况怎么回答这个问题啊？
问题2
Are you a member of or affiliated with the Communist or other totalitarian party?
我爸是共产党员，那是不是就得回答yes. 然后就被要求解释，那如果yes的话，要解释啥呀？填yes的话会影响immigration visa 申请嘛？
问题3
表的最后有个问题Do you want the Social Security Administration to issue a Social Security number and a card?
这个是填yes吧？
谢谢！
