Visitor Visa for parents -2nd time in 1 year

[Admit]

My parents came to US in September last year for 4 months to stay with me and my wife- for pleasure and social trip. I sponsored them last time and Mumbai consulate gave them visa for 6 months. I am planning (sponsoring also) to call them here again in October this year and have taken visa interview appointment date. I want to know what would be a good answer to the question - "why do you want to go to US again, since you stayed there for 4 months last year?"

Any suggestions/ ideas would be appreciated.

Thanks in Advance.

[Murali]

I dont see any problem and very less chnaces of such question. also more then the naswer then key is how best the applicant handle the question.
One possible answer ( with confidence) is to go again and "spend some quality time with childrens and travel some places".

[rajsree]

My Parents had attented today for the visa they got it don't know yet for how many years