Which person would be considered an intrapreneur?

A  John worked for the federal government in the Internal Revenue Department for 30 years, learning the ins and outs of corporate taxes. After retiring, he starts his own tax-advisory business.

B  Fiona worked at many restaurants as a short-order cook; she leaves to start her own diner.

C  Sally previously worked as a copyeditor at a national magazine. She leaves the company to begin her own small publishing company.

D  Cassandra works for a medical supply company as an engineer. After she perceives the medical community needs for a new surgical laser device, she designs a new product for the company.

E  Frank is a talented drummer who starts his own band, composes his own music, and records at his own studio.