An Agent Has Been Hired to Buy Land for the Principal

An agent has been hired to buy land for the principal for use as a factory site.The agent finds a good parcel for the purpose,and proposes it for purchase to the principal.The principal declines to purchase the property because it is too far from the interstate highway.The agent then buys this land for himself as an investment.What,if anything,has the agent done wrong?

A) usurped an opportunity
B) nothing
C) engaged in self-dealing
D) competed with the principal
E) misused confidential information