Rob orders a dozen electric guitars from Ty, and requests that Ty promptly ship the guitars. Ty promptly ships a dozen acoustic guitars to Rob. The same day, Ty calls Rob to let him know that he doesn't have electric guitars, but is trying to accommodate Rob's order by sending acoustic guitars instead. In this case:

Group of answer choices

There is no acceptance, but Ty has made a counteroffer that Rob can accept or reject

There is no acceptance because Ty's shipment materially differed from the terms of the offer

There is a good acceptance, and Rob is bound to pay the reasonable value of the acoustic guitars

There is a good acceptance, but Ty has breached the contract by shipping the acoustic guitars