The bullwhip effect is a distribution channel phenomenon in which demand forecasts result in inefficiencies in the supply chain. (Got this off from Wikipedia)
Prepositional phrase: on Ben's shoulder
Subject: Tattoo
Verb: spells
<h3>Yes really easy and I know you don't need an answer right?</h3>
It's been a few years since I read this story. But I believe the answer is D.