What Feature of the Skin Creates a Physical Barrier to Microbial

Multiple Choice

What feature of the skin creates a physical barrier to microbial invasion?

A) The fine hairs move microbes to mucous membranes for phagocytosis.
B) The outer layers are composed of cells full of protein which forms NETs to trap microbes until they are shed.
C) The oil secreted onto the surface of the skin traps microbes, preventing penetration.
D) The surface is constantly patrolled by phagocytic cells.
E) The outer layers are dead cells, tightly linked together, and are frequently shed.