In Spring 2007,Irwin Gotlieb Crafted a $1 Million Pact with NBC

In spring 2007,Irwin Gotlieb crafted a $1 million pact with NBC Universal (NBCU) that changed the age-old model of how TV ads are bought: The bigger the hit,the more you pay.With DVRs allowing people to skip commercials,Gotlieb decided that a show's popularity no longer mattered.He told NBC executives that he would pay based on who was watching the commercials.Gotlieb is an example of a(n) :

A) ad traffic department head.
B) art director.
C) media director.
D) media buyer.
E) audience planner.