A Survey of Senior Citizens at a Doctor's Office Shows

Multiple Choice

A survey of senior citizens at a doctor's office shows that 40% take blood pressure-lowering medication, 47% take cholesterol-lowering medication, and 13% take both medications.
What is the probability that a senior citizen takes either blood pressure-lowering or cholesterol-lowering medication?

A) 1
B) 0.6
C) 0.74
D) 0.87
E) 0