The Following Diagram Shows a "Reaction Function" Graph for Two

Multiple Choice

The following diagram shows a "reaction function" graph for two firms selling in an export market, where HH is the home firm's reaction function and FF is the foreign firm's reaction function. Reaction function HH reflects the fact that, if the foreign firm increases its quantity sold in this market, then the home firm will __________ its sales level in the market; reaction function FF reflects the fact that, if the home firm increases its quantity sold in this market, the foreign firm will __________ its sales level in the market.

A) decrease; decrease
B) decrease; increase
C) increase; decrease
D) increase; increase