Which function is common to skin, hair, and nails?

Protection from harmful things.

Explanation:

The integumentary system consists of the skin, hair, nails, the subcutaneous tissue below the skin, and assorted glands. The most obvious function of the integumentary system is the protection that the skin gives to underlying tissues.

the correct answer on edge is

c) pair 6

answer; regard the action of other people negatively;