Which of the following individuals would be at the greatest risk for bacterial pneumonia?

a. a 90-year-old grandmother

b. a 30-year-old teacher

c. a 45-year-old parent

d. a 20-year-old college student

The question is asking "Which of the following individuals would be at the greatest risk for bacterial pneumonia?" and what you need to know is that with age, the ability to defend itself from bacteria diminishes in an organism - so the older the person, the less protection from bacteria they have. So we choose the oldest person, a. a 90-year-old grandmother

I just took the test. On Edgenuity it is ...

A) A 90 Year Old Grandmother