Dispersing Particular Value Chain Activities Across Many Countries Rather Than

Dispersing particular value chain activities across many countries rather than concentrating them in a select few countries can be more advantageous except when

A) buyer-related activities (such as sales,advertising,after-sale service and technical assistance) need to take place close to buyers.
B) buyers demand short delivery times and/or high transportation costs make it uneconomical to operate from one or just a few locations.
C) it helps hedge against the risks of exchange rate fluctuations,supply disruptions,and adverse political developments.
D) there are diseconomies of scale in trying to operate from a single location.
E) there are reasons to decouple buyer-related activities in favor of locational advantages.