Final answer:
Negotiators in the Pearl River Delta are known to be skilled, as negotiation is crucial in the manufacturing and trading sectors prevalent in the area.
Step-by-step explanation:
The negotiators in the Pearl River Delta are reputed to be skilled. This region is known for its robust manufacturing and trading sectors, and negotiating skills are highly valued and developed in such an environment. Successful negotiation in this region requires a deep understanding of the business culture, strong communication skills, and strategic thinking, all of which are attributes associated with experienced and proficient negotiators.