A Research Is Being Carried Out to Evaluate the Efficacy

A research is being carried out to evaluate the efficacy of a novel medicine X added to conventional antihypertensive therapy vs standard antihypertensive therapy alone in avoiding the development of proteinuria in patients recently diagnosed with essential hypertension. Five years following diagnosis, 97 of 100 patients on drug X with conventional antihypertensive therapy did not develop proteinuria, but 90 of 100 patients on standard antihypertensive therapy did. Which of the following indicates the approximate number of patients with essential hypertension who need to be treated with medicine X to prevent 1 additional patient from getting proteinuria within 5 years, based on these findings?

A) 3
B) 7
C) 10
D) 15
E) 70