Read these directions: note that fumes from this product are toxic. to avoid illnesses associated with fumes: always work in a well-ventilated area. avoid breathing in vapors. open windows and doors for cross-ventilation. if the area is not well ventilated, wear a protective mask over nose and mouth. which is the best choice for this list?
a. a combination of bullets and numbering
b. bullets
c. numbering, with sub-steps
d. numbering, without sub-steps