Answer:
Option E, C tactile (CT) afferent
Step-by-step explanation:
Whenever a slow moving gentle touch experienced, the response is due to the nerve fibers called C-Tactile afferents (CTs). 
 
C-Tactile afferents (CTs) are unmyelinated mechanoreceptors of low threshold and low conduction velocities. 
In humans, CT neurons are found in hairy skin. 
 
The pleasant feeling observed during a slow gentle touch is due to the interaction of 
CT neurons project to the insular cortex in the brain 
 
Hence, option E is correct