Which of the following has the same meaning with “ proposition ” in “ The flagging value proposition is now catching up to coleges "?

A. Getting a work permit in the UK is not always a simple proposition .
Both its sponsors and its opponents regard Proposition 23 as a weathervane .
C. You came to see me at my office the other day with a business proposition .
D. It ’ s an accepted proposition that we have a duty to protect endangered animals .