Which delivery method will provide the client with the project cost at an earlier time?
-Design build?
-Design bid build?
-Fast Track?

CM @ Risk will provide the client with the project cost at the earliest time.

However if thats not an option, my guess would be Design/Build - it allows for earlier knowledge of cost.

Get your hands on the AIA handbook for professional practice, they explain delivery methods 100% better than kaplan... I found one on ebay for 60$ and that book i will keep as its got a ton of great info... my bosses at work have borrowed it already lol!

I would think that the design/build method would provide the cost the earliest because the design/build entity will bid the project before starting development.

yeah I think its actually design build. I think that is addressed in Black Spectacles somewhere. w/ DB you should know in pre design.