If Sid to Part, "I will sell you my laptop for $100", and Chris who overhears Sid's offer, says, "I accept your offer, and I will buy your laptap for $200 is a contract formed?

A. Yes, unless Pat accepts the other before Chris accepts the offer.

B. No, the other was made to Pat so only Pat can accept the other

C. Yes, an offer can be accepted by anyone who hears the other

D. No, Sid's offer is not a valid offer because it does not contain a term specifying when the offer has to be