Cleo is hired as the CEO of Wolfstarter Company, a publicly owned corporation. After she is hired, she authorizes the purchase of a company limousine to chauffeur her around

town, purchases a skybox at the stadium of the local NFL team, and provides herself with a company$-$paid membership at the local country club. This behavior could be an example

of

a$.$ the free$-$rider problem.

b$.$ adverse selection.

c$.$ the principal$-$agent problem.

d$.$ undisclosed information.