Jethroe oversees a research study assessing the relationship between the frequency of exercise per week and the number of falls in elderly subjects. The Pearson coefficient is found to be -0.87. When presenting this information, which of the following is the MOST accurate:   
A. Exercising more often causes fewer falls in elderly subjects  
B. Increased frequency of exercise has an inverse relationship with the number of falls in elderly subjects 
C. Exercising more often causes a higher incidence of falls in elderly subjects 
D. Increased frequency of exercise has a direct relationship with the number of falls in elderly subjects
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