During a fourth-grade science lab, a glass beaker breaks, and a student cuts his finger and gets blood on the table. Which safety procedure should the teacher observe first?"
In the event of a glass beaker breaking and a student getting injured, what safety procedure should the teacher prioritize?

a. Clean the blood with bare hands
b. Call for medical assistance immediately
c. Continue the lab without interruption
d. Wait for the student to clean their own wound