Alka-Seltzer Was Made Originally as a Hangover Remedy That Cured

Multiple Choice

Alka-Seltzer was made originally as a hangover remedy that cured the headache and settled the stomach. Today, you can purchase Original Alka-Seltzer, Extra Strength Alka-Seltzer, Alka-Seltzer Morning Relief (for morning headaches and fatigue) , and Alka-Seltzer Heartburn Relief. To extend the product's sales to new markets, the makers of Alka-Seltzer have used:

A) market modification.
B) diversification.
C) product modification.
D) a market-product strategy.