Question

which method of distribution is most commonly used by online bookstores? according to need first come, first served equal distribution ability to pay

Explanation:

Online bookstores typically use the "first come, first served" method for distribution (especially for limited - edition or high - demand items) as orders are processed in the sequence they are received. "According to need" is more relevant for charitable or resource - allocation in a need - based social context. "Equal distribution" is not practical for online bookstores as demand varies. "Ability to pay" relates to pricing or access based on payment capacity, not distribution.

Answer:

first come, first served