Technician who fits, shapes, and paints prosthetic eyes:

Which of the following diseases is characterized by a defect in sphingomyelinase, which results in macrophages with a foamy appearance?

a. Gaucher's b. Fabry's c. Tay-Sachs d. Niemann-Pick

________ _________ __________ respond initially to the scene with personnel and equipment to treat the sick and injured until an ambulance can arrive.

Fill in the blank(s) with the appropriate word(s).