Question

indirect distribution channels use _______ to sell their products to the end customers. the internet advertisements middlemen door - to - door sales

Explanation:

Indirect distribution channels rely on intermediaries (middlemen) to connect producers to end customers. The other options (internet, advertisements, door-to-door sales) do not define indirect channels—internet/door-to-door can be direct, and advertisements are promotional tools, not distribution intermediaries.

Answer:

middlemen