Greg and Ron buy and sell vacuum cleaners for a living. Greg sends Ron an offer to buy vacuum cleaners using Greg's purchase order form. Ron sends his acceptance using his sales invoice form. When he fills out his sales invoice form, Ron types in the same terms that Greg typed into his purchase order form. But the pre-printed boilerplate language on the back of Ron's sales invoice form contains a few additional terms that did not appear in Greg's purchase order form and do not materially alter the proposed deal. Greg receives Ron's sales invoice form and does not object to the additional terms on it. Based on the facts, which is true?

Group of answer choices

A contract results and does include the additional terms in Ron's sales invoice

No contract results because the "mirror image rule" has been violated

No contract results because Ron's sales invoice is a counteroffer

A contract results but does not include the additional terms in Ron's sales invoice