Which of the following was a contributing factor for the more than 8-percent decrease in heart disease mortality between 1988 and 1989?

The death rate from heart disease fell more than 8 percent in just one year during the 1980s. Advances in public awareness of heart disease and in treatments for it are thought to be partially responsible for the decline. New heart drugs, a technique called angioplasty for clearing the arteries, and surgical advances have also assisted in reducing heart disease fatalities, as has increased interest in a healthy lifestyle and diet.

Which of the following was a contributing factor for the more than 8-percent decrease in heart disease mortality between 1988 and 1989?
A . New kinds of heart medicine became available for public use.
B . Sunscreen products were used more frequently.
C . More people used the “buddy system” while engaging in strenuous activities.
D . Exercise fads became less popular.
E . More people regularly slept 8 hours per night.

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Answer: A