Under the UCC Sales Article, which of the following statements is correct regarding the 'Battle of the Forms' between two merchants?

Any additional terms in the acceptance automatically constitute a counteroffer, rejecting the original offer.

Additional terms never become part of the contract unless explicitly agreed to by the offeror.

Additional terms in the acceptance become part of the contract unless they materially alter it, the offer limited acceptance to its terms, or the offeror objects.

No contract is formed if the terms of the acceptance vary from the offer.