The Following Table Shows the Payoffs for Firm 1 and Firm

The following table shows the payoffs for Firm 1 and Firm 2 in a zero-sum game:
Table 10-2
$\begin{array}{c}\quad\quad\quad\text { Firm2}\\\begin{array}{|c|c|r|}\hline\text { Firm 1 } & \text { C1 } & {\text { C2 }} \\\hline \text { R1 } & 4,5 & 10,4 \\\hline \text { R2 } & 2,8 & 8,7\\\hline\end{array}\end{array}$

-Refer to Table 10-2. Identify the correct statement.

A) Firm 1's dominant strategy is R1.
B) The equilibrium strategies are R1 versus C2.
C) Neither player has a dominant strategy.
D) The equilibrium payoffs are 10 and 4.
E) The game is a constant-sum game.