The sebaceous glands secrete sebum, or ______, into the hair shafts.

A. Hormones
B. Oil
C. White blood cells
D. Red blood cells

I don't have a clue maybe B

3 answers

Right
Thanks
You're welcome.

In the future, just go to www.google.com and enter define: sebum or whatever term you need defined. It's better than guessing!