Collagen a. has a very regularly repeating primary protein structure. b. is a protein found in hair, among other things. c. is a dimer of two intertwined helices. d. has a very compact, springy structure. e. is composed almost entirely of beta-pleated sheets.

The correct option is B.

is a protein found in hair, among other things

Explanation:

Collagen is a structural protein found in different connective tissues of the body such as bones, cartilage, tendons, ligaments, skin e.t.c. it is the most abundant protein in mammals. It comprises of various amino acids that are join together to form triple helix of fibrils. Collagen is found in hair and other things because it is found in skin follicles that surrond the hair. The collagens that surrond the hair bulb increases the amount of hair and thicken it.

want or the answer

answer; synapse; i believe this is correct,plz check first good luck;