What key aspect of the CISG involves jurisdiction?

The correct choice highlights a crucial aspect of the Convention on Contracts for the International Sale of Goods (CISG), which is its focus on determining which laws apply in the event of a dispute between parties. The CISG is designed to provide a uniform framework for international sales transactions, ensuring that the parties involved have clarity on fundamental legal principles governing their contracts. This inclusion of legal applicability is vital because it helps reduce uncertainty and enhances predictability in cross-border transactions.

While the other choices address other elements of commercial transactions, they do not pertain directly to jurisdiction or the resolution of legal disputes under the CISG. The convention does not specify types of cargo, regulate contract durations, or set penalties for violations; its primary purpose is to establish rules for resolving conflicts that arise regarding the sale of goods internationally, thus centralizing the legal considerations to be adhered to in any dispute. Therefore, understanding the applicability of laws under the CISG is essential for practitioners involved in international trade.