Which of the following correctly describes thermoreceptors?

A) There are structural differences between cold and warm thermoreceptors.
B) They are tonic receptors.
C) Thermoreceptors are found in the epidermis of the skin, in smooth muscles, in the liver, and in the epithalamus.
D) Sensations detected by thermoreceptors are conducted along the spinothalamic tracts.
E) Thermoreceptors are very active when the temperature is changing, but they slowly adapt to a stable temperature.