By crossing out an important provision from the original agreement C's action is considered a counteroffer. A is now on the receiving side and hence no longer liable to sell to C. Both parties must acknowledge the change and renegotiate.
Refer to the case LB Foster v Tie and Track Systems
Facts of the case:
Foster (plaintiff) sent invitation for Tie (defendant) to submit price quotes for Foster's bid on a railroad expansion project. Tie sent a price quote for 9 items by email. There was no discussion regarding terms of payment or delivery. However, Foster only accepted 3 out of 9 item's prices. Foster demanded those items at the price, Tie refused. Foster sued for breach of contract and loss of profits on its bid.
District court held for Tie. The email sent by Tie to Foster is not an offer, essential items such as delivery and payment terms were missing. Hence, it is just a negotiation. Also the court assuming that Tie's email was an offer did not find Foster made a valid agreement. The offer was for 9 items not 3.
Refer to the case William C Cornitius, Inc v Wheeler (556 P2d 666)
Fact of the case: Wheeler (defendant) leased space for his car service station from Cornitius (plaintiff). The lease lasted for 3 years, there were no terms for renewal but it was renewed 6 times under same terms except price. However, Cornitius refused to renew the lease further when Wheeler rejected the latest lease terms. Cornitius sued for Wheeler to vacate. Trial court held for Cornitius, Wheeler appealed
Appeal court affirmed. There is absolutely no remedy in law for Wheeler. As the lease has expired and Wheeler, being uncomfortable with the terms, can only move out.