If a person were to suffer an injury in the lower portion of their dorsal column, what would be the resulting condition?
       
intact pain and temperature sensations and intact touch and vibration sensation at or below the level of injury
       
intact pain and temperature sensations and impaired touch and vibration sensation at or below the level of injury
       
impaired pain and temperature sensations and intact touch and vibration sensation at or below the level of injury
       
impaired pain and temperature sensations and impaired touch and vibration sensation at or below the level of injury