Visitor Visa - B2

hi i live in India I wanted some help on US visitor visa me and my daughter had taken visitor visa in 2009 at that time my husband was not going with us so we both went to us and stayed there for six weeks this year I applied for my husband but the officer was stuck on the point that how did your wife manage to stay for six weeks when there is no one you know in the US. The thing is that we have many relatives there but at my time we had showed the tour paper but then i did not go with the tour and went on my own this time also we showed the tour papers i we also showed me and my daughters passport with visas on them my husband also told the officer that the tour people had arranged everything and they went to many places but he was not convinced. I am thinking of applying for him for the second time can we change our answers a bit the second time. like he told the officer that my wife had gone in a tour can we say this time that she went on her own and we have friends there they helped us. When he applies for second time can we say that now i don't want to go by a tour as it is not sure to get visa. I please need help If anyone can thanks in advance
my point is that do they record the interview can we change the answer if same question is asked what if the same officer comes again