The demand curve of a typical monopolist is:

a. downward-sloping and as elastic as a perfectly competitive firm's demand curve.
b. described by none of the listed options.
c. upward-sloping and more-elastic than a perfectly competitive firm's demand curve.
d. downward-sloping and less-elastic than a perfectly competitive firm's demand curve.
e. upward-sloping and less-elastic (steeper) than a perfectly competitive firm's demand curve.