14 ) . THE MIRROR IMAGE RULE IS A DOCTRINE ( A ) FIRST INTRODUCED IN THE UNIFORM COMMERCIAL CODE ( B ) THAT REQUIRES OFFERS AND COUNTER OFFERS TO BE MIRRORED REFLECTIONS OF ONE ANOTHER ( C ) THAT REQUIRES AN ACCEPTANCE TO CONFORM EXACTLY TO THE TERMS OF THE OFFER ( D ) THAT IS NO LONGER APPLICABLE TO CONTRACT LAW 15 ) . AS A GENERAL RULE , THE MODERN LAW REQUIRES ACCEPTANCE TO BE IN WRITING : ( A ) IF THE OFFER IS IN WRITING ( B ) IF THE PROPOSED CONTRACT IS A SALES CONTRACT ( C ) IF THE OFFER CONTAINS NEW TERMS THAT MIGHT POSSIBLY BE CONSTRUED BY THE OFFEROR TO BE A COUNTER OFFER ( D ) A AND B ( E ) NONE OF THE ABOVE 16 ) . JAN HAS A TYPEWRITER SHE WISHES TO SELL . SHE OFFERS TO SELL IT TO CALL FOR SSO DINE HEARS ABOUT THE OFFER AND INFORMS JAN THAT SHE ACCEPTS THE OFFER TO BUY AT SSO . WHICH IS CORRECT ? ( A ) THERE WAS NO OFFER BY JAN TO DIANE ( B ) THE OFFER MUST BE KEPT OPEN FOR 30 DAYS ( 0 ) IF GALL HAD TOLD DIANE OF THE OFFER , THEN THERE WOULD BE A VALID OFFER TO DIANE ( D ) THIS OF FER IS COVERED BY THE STATUTE OF FRAUDS BECAUSE IT IS PERSONAL PROPERTY