How can a contingency contract affect information asymmetry in a negotation?

Extends the final terms of a contract until information can become more symmetrical.

Decreases the likelihood of overpaying for an asset whose performance is not fully known

Levels the playing field between buyer and seller

A & B Only

All of the Above $($A$,$ B$,$ & C$)$ are ways that a contingency contract affect information asymmetry in a negotation.