Answer: logistical functions
Explanation: In simple words, it refers to that function of supply chain management which ensures the effective flow of goods, services and the related information from the producer to the consumer.
In the given case, Serenity sells the fountains to the wholesaler who stocks them to to supply at the right time of the year to the customers. Hence wholesalers are ensuring effective flow of the commodity in the market.
Hence from the above we can conclude that the correct answer is logistics.
