Concept:Non-economic factors are those not linked to production cost, profit, or market demand, for example, political influence.
Explanation:The availability of raw materials affects production cost.
Nearness to buyers influences market revenue.
Power supply and transport networks reduce cost and improve distribution.
All these are economic factors.
Politicians deciding where firms should be located is a political or administrative decision, not a cost-based factor.
Hence, it is a non-economic factor.
Answer:D. the activities of politicians in deciding location of firms