If Nintendo Lowers the Price of Its Product by $10

Multiple Choice

If Nintendo lowers the price of its product by $10, Sony responds by lowering the price of its own product by $10. The following month, Nintendo raises the price of its product by $15 and Sony responds by raising the price of its own product by $15. This is an example of what type of game strategy?

A) grim trigger
B) trembling hand trigger
C) tit-for-tat
D) predatory pricing