Complete the Following Using the Terms Listed Below

Complete the following using the terms listed below:
-In a(n) _____, a single seller dominates trade in a product for which buyers can find no close substitute.

A) Consumer Price Index (CPI)
B) inflation
C) gross domestic product (GDP)
D) fiscal policy
E) monetary policy
F) equilibrium price
G) budget deficit
H) pure competition
I) supply
J) demand
K) productivity
L) recession
M) microeconomics
N) oligopoly
O) monopoly