The diagram illustrates the blood vessels in the dermis of human skin during a homeostatic response to an environmental temperature change.
Which of the following options correctly identifies the environmental condition represented, the state of the shunt vessel and arteriole shown, and the corresponding state of the erector pili muscles in the skin?
Environment: Hot∣Shunt Vessel: Dilated∣Arteriole: Dilated∣Erector Pili: Relaxed
\text{Environment: Hot} \quad | \quad \text{Shunt Vessel: Dilated} \quad | \quad \text{Arteriole: Dilated} \quad | \quad \text{Erector Pili: Relaxed}
Environment: Hot∣Shunt Vessel: Dilated∣Arteriole: Dilated∣Erector Pili: Relaxed
Environment: Cold∣Shunt Vessel: Dilated∣Arteriole: Constricted∣Erector Pili: Contracted
\text{Environment: Cold} \quad | \quad \text{Shunt Vessel: Dilated} \quad | \quad \text{Arteriole: Constricted} \quad | \quad \text{Erector Pili: Contracted}
Environment: Cold∣Shunt Vessel: Dilated∣Arteriole: Constricted∣Erector Pili: Contracted
Environment: Cold∣Shunt Vessel: Constricted∣Arteriole: Constricted∣Erector Pili: Relaxed
\text{Environment: Cold} \quad | \quad \text{Shunt Vessel: Constricted} \quad | \quad \text{Arteriole: Constricted} \quad | \quad \text{Erector Pili: Relaxed}
Environment: Cold∣Shunt Vessel: Constricted∣Arteriole: Constricted∣Erector Pili: Relaxed
Environment: Hot∣Shunt Vessel: Constricted∣Arteriole: Dilated∣Erector Pili: Contracted
\text{Environment: Hot} \quad | \quad \text{Shunt Vessel: Constricted} \quad | \quad \text{Arteriole: Dilated} \quad | \quad \text{Erector Pili: Contracted}
Environment: Hot∣Shunt Vessel: Constricted∣Arteriole: Dilated∣Erector Pili: Contracted