7. In the absence of agreement on place, time and means of the delivery, it is NOT true according to CISG that a. the seller should deliver the goods, if involved transportation, to the first carrier. b. the seller should deliver the goods, if he is to arrange for transportation, in the way appropriate in the circumstances and according to the usual terms for such transportation. c. the seller should deliver the goods upon notice of the buyer. d. the seller should deliver the goods at the place where it is known to both parties