When Heather Arrives at the Lab to Begin Her Shift

When Heather arrives at the lab to begin her shift, she notices a puddle of a yellowish liquid on the floor near the door. There are no overturned bottles or other indication of what the liquid might be. What should Heather do?

A) Pour a bleach solution over it to kill any pathogens it may contain
B) Use paper towels to mop up the liquid before someone slips and falls
C) Call housekeeping to come and mop up the puddle
D) Sprinkle baking soda on the liquid to absorb it
E) Clean it up following strict hazardous waste control procedures