hey pit, i need some help on my business homework. whats a good example of a marketing function? (other than advertisement and selling)

i dont really get the concept of it all. theres like design, pricing, shipment and all that but i cant find a picture or video to relate to any of that because it would just be advertisement :p
Jackson DXMG -> Vai Morley Wah -> Korg Black Tuner -> (Need a delay) -> Maxon OD808 -> BBE Sonic Maximizer -> ISP Noisegate -> Mesa Boogie Mark IV
**** i wrote an economics test last night and i kicked its ass!
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