Why in general do financial managers make financial decisions in a corporation, rather than the owners making these decisions themselves?

A$.$ There are often many owners, and they can often change as they buy and sell stock.

B$.$ The owners may not be U$.$S$.$ citizens or residents.

C$.$ It is best for the control of the finances of a corporation to be in the hands of a disinterested third party.

D$.$ The interests of the various owners may conflict with each other.