Answer the following question given this paragraph: Goosebumps. Mammals raise their hair with tiny muscles in the skin. Even humans automatically contract these muscles when they are cold. They cause "goosebumps," as shown here. Q: What is the layman's term for mammals raising their hair with tiny muscles in the skin, something that is automatic in humans sensing cold? Choices: - spine tingling - follicles - hypothermia - goosebumps A:
goosebumps