关于lux express 官网买票

请问下在lux express 官网买票 个人信息里的document 应该选填哪一个？
1.Russian federation citizen passport
2.Russian federation citizen foreign travel passport
3.Foreign citizen passport
4.seaman`s passport
5.stateless person identity card(like alien`s passport)
6.Temporary identity card
7.Diplomatic passport