Question

for those working in health care, handwashing is
a. optional
b. a tradition that does not actually help contain the spread of disease
c. the single best way to prevent spreading infection
d. not recommended

Explanation:

Hand - washing is a crucial practice in health - care to prevent the spread of infection and diseases. It is not optional and is a well - established and highly recommended method.

Answer:

C. the single best way to prevent spreading infection