Question

multiple-choice question
when you finish working with chemicals, biological specimens, or other lab substances that could be harmful always:
treat your hands with skin lotion
wipe your hands on your clothes
wash your hands thoroughly with soap and water
clean your shoes
rewatch

Explanation:

To ensure safety after handling harmful lab substances, the correct procedure is to wash hands thoroughly with soap and water. Treating with lotion or wiping on clothes doesn't remove contaminants, and cleaning shoes is irrelevant here.

Answer:

C. Wash your hands thoroughly with soap and water