The most suitable channel for the sale of an aircraft is?

Explanation

producer - consumer; This is the oldest, shorter and the simple channel of distribution. The producer sells the product directly without involvement of any middle man. The sale can be made door to door through salesman, retail stores and direct mail. Certain industrial and consumer goods such as clothes, shoes, books, hosiery goods, cosmetics, household appliances, electronic goods etc., may be sold through direct contact. Perishable goods such as vegetable and fruits can also be sold directly.