Final answer:
The 'Place' is the sole marketing mix element that changes in export selling compared to domestic selling, as it involves international logistics and different market considerations.
Step-by-step explanation:
The only marketing mix element that differs in export selling as opposed to domestic selling is Place. In the context of the marketing mix, 'Place' refers to the distribution channels and locations where products are sold, which significantly changes when dealing with international markets. For domestic selling, the 'Place' is within the home country, which includes understanding local competition, supply chains, and consumer behavior. However, in export selling, firms must consider international logistics, trade barriers, cultural differences, and additional costs associated with shipping and storage abroad.