The customer has demanded that you reduce the schedule by three weeks. What does this mean in terms of the Project schedule?

Agreed with you,

......Thanks

You cannot deliver the project three weeks earlier without impacting project quality

Answers is 

c. Your project has negative float

Negative float of 3 weeks

You have decided that fast tracking is the best option to pull in the schedule by three weeks

Thanks for invitation....I endorse answers given by colleagues &Experts

C – Notice the question doesn't ask you what you will do about it – it simply asks you ‘what does this

mean’? What it means is that your project now has a negative float of three weeks

thanks for invition ,,,,,,,,,, my choice is option C