A Patient Diagnosed with a Primary Brain Tumor Asks the Nurse

A patient diagnosed with a primary brain tumor asks the nurse if this is a common disease.Which response by the nurse is accurate?

A) "Brain tumors are very rare."
B) "About 40,000 people a year are diagnosed with a primary brain tumor."
C) "It doesn't really matter. We are just concerned with helping you."
D) "Almost all primary brain tumors are malignant."