Refer to the normal-form game of price competition shown below.

Firm A must decide whether or not to introduce a new product. If firm A introduces a new product, firm B must decide whether or not to clone the product. The payoff structure of the game is depicted in Figure 10-12. The subgame perfect Nash equilibrium to this game is:

Multiple Choice

• Firm A plays "Do Not Introduce"; firm B plays "Do Not Clone" if firm A plays "Introduce."
• Firm A plays "Do Not Introduce"; firm B plays "Clone" if firm A plays "Introduce."
• Firm A plays "Introduce"; firm B plays "Do Not Clone" if firm A plays "Introduce."
• Firm A plays "Introduce"; firm B plays "Clone" if firm A plays "Introduce."