Final answer:
The correct answer is D) Label verification. Before pouring beer into a container previously holding cleaning solutions, it is important to verify the label and ensure proper cleaning.
Step-by-step explanation:
The correct answer to this question is D) Label verification. Before pouring beer into a container that previously held hazardous cleaning solutions, it is important to verify the label to ensure that the container has been properly cleaned and is safe for use. Label verification helps prevent any potential contamination or harm.