The Table Below Shows the Market Shares for the Only

The table below shows the market shares for the only firms in a domestic cement market. $$\begin{array} { | l | l | } \hline & \text { Market Sh are } \\\hline \text { Firm A } & 45 \% \\\hline \text { Firm B } & 22 \% \\\hline \text { Firm C } & 10 \% \\\hline \text { Firm D } & 8 \% \\\hline \text { Firm E } & 7 \% \\\hline \text { Firm F } & 5 \% \\\hline \text { Firm G } & 2 \% \\\hline \text { Firm H } & 1 \% \\\hline\end{array}$$ TABLE 11- 1
-Both empirical evidence and everyday observation suggest that oligopolies contribute to economic growth in the very- long- run by

A) achieving allocative efficiency.
B) decreasing minimum efficient scale.
C) achieving technological improvements and innovations through research and development.
D) consistently producing at full- capacity output.
E) rarely laying off workers.