How would you answer this?

I used to hand the pr for let's call it company A. A was a great company but my boss was a real beyotch who had me illegitimately written up. I defended myself with documentation that contradicted her story and my report got ripped up and she got in trouble. After that things were not good for us and she managed to convince HR to eliminate my position and hire a pr agency instead.

It is three years later and I have a job interview with the pr agency A hired. I am sure they are going to inquire about my experience there, and possibly ask if I would work on that account. How would you answer? I was thinking of saying that My experience at A helped prepare me for my current role and I am very fortunate for that. (it's the truth). I would hate working on A's account but I am thinking I would say that I will work on whichever accounts I am needed. Does that sound good or too much of a s u c k up?

Re: How would you answer this?

If it comes up at all I would answer that since I know the company well I am uniquely suited to work on it.