Greg has developed an automobile engine that runs efficiently for up to three hours on a single russet potato. His friends have pointed out that it will be difficult to get car manufacturers to adopt his new technology and that it could take years to make it practical for people to rely on the new energy source for long trips. However, Greg is convinced he can make the U.S. economy energy independent, thus changing the world. He plans to create a new business called Spuds-to-Go to promote his new engine. Greg has:
a. vision and confidence.
b. no opportunity sense.
c. an external locus of control.
d. low strategic planning skills.