Chrissie Owns a Vintage Guitar That She Values at $0

Chrissie owns a vintage guitar that she values at $0.Mark would like to buy the guitar and values it at $1000.The negotiations are as follows.Chrissie suggests a price to Mark.If Mark agrees trade takes place at the agreed price.If Mark rejects the offer, negotiations proceed to the next round in which Mark makes an offer to Chrissie.If Chrissie agrees with Mark's suggested price, trade takes place at that price.If Chrissie rejects this offer negotiations end and each party receives a payoff of $0.What is the outcome of the negotiations?

A) Chrissie offers a price of $400 and Mark accepts.
B) Chrissie offers a price of $600 and Mark accepts.
C) Chrissie offers a price of $1000 and Mark accepts.
D) Chrissie offers a price of $500 and Mark rejects.
E) Chrissie offers a price of $0 and Mark agrees.