Suppose I have promised to keep a confidence and someone asks me a question that I cannot answer truthfully without thereby breaking the promise  Obviously, I cannot both keep and break the same promise
Ttherefore, one cannot be obliged both to answer all questions truthfully and to keep all promises
If we put a lot of effort into making this report look good, the client might think we did so because we believed our proposal would not stand on its own merits. On the other hand, if we do not try to make the report look good, the client might think we are not serious about her business. So, whatever we do, we risk her criticism.