Dear Adnan,
I had a client 2 years back for Subclass 574. She was married but coming alone in the beginning. She was asked this question too. Her spouse was a Government official and working on a very senior level position.
My client just explained the fact in a proper way and she got the visa.
It is not a difficult question and can be answered in a very proper way.
Regards,
Sanjayai Kapoor
My Immigration Help
Registered Migration Agent, Australia (MARN: 1066506)
Licensed Adviser NZ Immigration (License No: 201002178)