What is the correct concept map showing the neural pathway of a sensory impulse from the forearm to the spinal cord?
1) Stimulus -> Dorsal ramus -> Spinal nerve -> Dorsal root ganglion -> Dorsal root ->
Posterior gray horn -> Somatic sensory

2) Stimulus -> Ventral ramus -> Spinal nerve -> Dorsal root ganglion -> Dorsal root ->
Posterior gray horn -> Somatic sensory

3) Stimulus -> Dorsal ramus -> Spinal nerve -> Vental root -> Anterior gray horn ->
Somatic motor

(HELP NEEDED ASAP. I REALLY APPRECIATE IT. THANK U SO MUCH)