In the short run, the firm's network is fixed while in the long run it is variable.
Option A
Step-by-step explanation:
Logistics network planning refers to tools that are required to evaluate the trade-offs among inventory quantities, amount and warehouses location, and transportation costs to most profitably and possibly support or assist a desired level of customer service.
Here the network would be fixed for short-term and on a long term basis it would be variable.
Logistics network design is associated with the site of warehouses and manufacturing plants, distribution of warehouses in connection to production plants or allocation of demands of the customers.